Steakhouse Onion Pot Roast

A Rich Onion Pot Roast for Sunday Dinner and the Best Leftover Sandwiches

This Steakhouse Onion Pot Roast is a tender chuck roast cooked low and slow with lots of onions, A1 sauce, Worcestershire, pepperoncini, butter and savory onion seasoning. The onions practically melt into the cooking liquid and create a rich gravy that tastes somewhere between classic pot roast, French onion soup and an old-school steakhouse dinner.

Serve it with mashed potatoes and vegetables for Sunday dinner, then save the leftover beef and gravy for some really fantastic sandwiches later in the week.

Somewhere Between Pot Roast and a Steakhouse Dinner

This recipe came from my love of two different pot roasts.

I love a traditional pot roast, but sometimes I don’t necessarily want all the carrots and celery that usually go along with it. Sometimes the carrots are just not my thing when they are roasted.

I have also always liked the IDEA of Mississippi Pot Roast, but ranch seasoning in pot roast just does not seem right.

So I wanted something that landed somewhere in between.

I wanted beef, onions and I wanted gravy.

And I wanted those really savory flavors you get from A1 and Worcestershire sauce that remind me of an old-school steakhouse dinner.

That’s where this Steakhouse Onion Pot Roast came from.

Instead of carrots and celery, I use a generous amount of sliced onion. As the roast slowly cooks, those onions soften down into the cooking liquid and become part of the gravy.

The pepperoncini and their juice give the whole thing a little tang to balance the richness without turning this into a spicy roast.

It is simple comfort food, but it has just enough going on to make it a little different from the pot roast you have probably been eating your whole life.

One of My Black Speckled Roaster Recipes

If you have been following me for any amount of time, you have probably seen one of these black speckled roasters show up in my recipes.

I use them ALL the time.

Pot roast, pork roast, stuffed peppers, turkey gravy and all kinds of other old-fashioned meals just seem to cook beautifully in them.

I have other roasting pans and plenty of cookware.

And yet I still find myself reaching for one of these. I use these speckled roasters whenever I possibly can.

I think the covered roaster creates the perfect little environment for recipes like this where I want meat to cook low and slow in plenty of flavorful liquid.

And I don’t even know if I should keep calling them my BLACK speckled roasters because I have some blue ones, too.

The Best Kitchen Inheritance From My Grandma

One of the greatest things I inherited from my grandma wasn’t something fancy or something that sits on a shelf looking pretty.

It was her collection of speckled roasters. She had so many.

I inherited several different sizes because we cooked so many family meals in these pans that having ONE speckled roaster was apparently not enough.

That is one of my favorite inheritances.

I can buy new cookware whenever I want, but I can’t buy the history that comes with pans that were used to make family dinners long before they ended up in my kitchen.

When I make recipes like this pot roast in one of Grandma’s roasters, it feels like exactly what those pans are supposed to still be doing. Feeding my family and friends!

What Size Speckled Roaster Do I Need?

You don’t need the exact same speckled roaster I have to make this recipe.

I have these roasters in several sizes, and the size you need really depends on the size of your roast. You want enough room for the chuck roast, onions and cooking liquid without everything being crammed against the lid.

I have talked more extensively in another one of my speckled roaster recipes about the different sizes I own and where you can find these pans.

You can often find them at hardware stores and thrift stores, and they are also sold online. If you happen to inherit a stack of them from your grandma, even better.

That post has more information about the speckled roaster itself and where I find them.

And if you don’t own one at all, don’t abandon dinner. You can still make great food in other cooking vessels.

Use a covered roasting pan or a Dutch oven that comfortably holds your roast. The important part for this recipe is keeping that moisture trapped inside while the beef slowly cooks.

More Recipes for Your Black Speckled Roaster

If you already own one of these roasters, you might as well put it to work.

I have accumulated quite a collection of recipes that I make in mine, so I am putting some of my favorites together here. Click each one for the recipe.

Why Two Different Onion Soup Mixes?

I chose both Golden Onion Soup Mix and Beefy Onion Soup Mix because they do slightly different things.

The Golden Onion gives me a sweeter, stronger onion flavor.

The Beefy Onion adds more of that deep savory beef flavor.

Together with the fresh onions, they create a much more layered gravy than I get from using just one packet.

Because I skipped the traditional carrots and celery, I wanted the onion flavor to do a lot of the work.

Don’t Want to Use Onion Soup Mix Packets?

You don’t have to use these if you are worried about the ingredients.

The packets are convenient and they are how I make the original recipe, but if you prefer to control the ingredients or sodium yourself, you can build a similar savory onion base from ingredients in your pantry.

For both soup mix packets, try:

• 1/4 cup dried minced onion
• 1 tablespoon Better Than Bouillon Beef Base
• 1 tablespoon Better Than Bouillon Onion Base
• 1 teaspoon onion powder
• 1/2 teaspoon garlic powder
• A few grinds of black pepper

Because bouillon bases vary quite a bit in saltiness, I would use water or unsalted beef broth in place of the regular beef broth when using this substitution.

Mix everything into the liquid ingredients before pouring it around the roast.

This isn’t supposed to be an exact homemade copycat of either Lipton packet. It is simply an easy way to get that concentrated beef-and-onion flavor into the roast without using packaged soup mix.

Taste the finished gravy before adding any additional salt.

A1 Sauce Is Doing More Than You Think

A1 Sauce is one of my favorite condiments, and it makes sense in this roast.

You don’t end up with beef that tastes like somebody poured steak sauce all over it. Unless you want it to, then add more.

The A1 cooks into the beef broth, Worcestershire, onions and butter and becomes part of the gravy.

It brings tang, sweetness and savory flavor that helps give this roast that steakhouse quality I was after.

Don’t Be Afraid of the Pepperoncini

If you have never cooked with pepperoncini, these are not going to turn your pot roast into a spicy dinner.

Pepperoncini are mild and tangy.

What I really want from them in this recipe is the acidity.

The pepperoncini juice gives everything just enough tang to keep the roast from tasting heavy.

I recommend using both the peppers and the juice, but if you have people who absolutely refuse to see a pepper in their pot roast, you can leave the whole peppers out and still use some of the juice.

Cook Until the Beef Tells You It Is Done

My very large semi-frozen chuck roast took approximately 4 1/2 hours at 325°F in my speckled roaster when I originally made this recipe.

That does NOT mean yours will take exactly 4 1/2 hours. Every oven is different.

The size and thickness of the roast, whether it is thawed or partially frozen, your particular oven and the roasting pan you use can all change the cooking time.

For this particular recipe, I am looking for fork-tender beef that pulls apart easily.

If you stick a fork into the roast and have to fight with it, it needs more time. Reminder that the roast will also get more tender after it rests out of the oven.

Put the lid back on and let it keep cooking.

Once the beef easily shreds, remove it from the roaster, shred it and return it to all that onion gravy.

Then give it another 15 to 20 minutes to sit there and soak everything up.

My Beloved Canned Potatoes Would Be Great in This

You know I love a canned potato.

I think canned potatoes are one of the most underrated convenience foods in the grocery store.

They’re already peeled.

They’re already cooked.

They wait patiently in your pantry until you need them.

What more do we want from a potato?

This Steakhouse Onion Pot Roast would be another GREAT place to use them.

Drain and rinse whole or sliced canned potatoes and add them to the roaster during approximately the last 30 to 45 minutes of cooking.

Because canned potatoes are already cooked, you don’t need them sitting in there for four hours turning into mashed potatoes.

You just want enough time for them to heat through and pick up some of that beefy onion gravy.

You could also warm the canned potatoes separately with a little butter and spoon the roast and gravy over them when serving.

If you have never embraced the canned potato lifestyle, this might be your gateway recipe.

Sunday Dinner: The Traditional Way

The first night I make this, I treat it like a classic Sunday dinner.

Pile the beef and onion gravy over mashed potatoes and add a couple of simple sides.

Some of my favorites would be:

• Green beans
• Buttered corn
• Glazed carrots
• Canned potatoes
• Roasted potatoes
• A simple salad
• Biscuits
• Dinner rolls
• Buttered egg noodles

You really don’t need complicated sides because the pot roast and gravy are already bringing plenty to the meal.

Cooking for Two? This Is a Freezer Recipe

A 3 to 5 pound chuck roast can sound like a lot of food when there are only two people in the house.

That is exactly why I like recipes like this. especially cause it is just us two.

Make the whole thing for your Sunday dinner

Save enough for sandwiches later in the week.

Then freeze the rest.

I recommend freezing the shredded beef with some of the onion gravy so it stays moist when you reheat it.

Divide it into portions sized for one future dinner rather than freezing everything in one giant container.

Then you can pull out exactly what two people need for sandwiches, beef and noodles, baked potatoes or another quick dinner.

Thaw it in the refrigerator and reheat it with its gravy until hot.

This is one of those recipes where cooking a larger roast can actually make MORE sense for a two-person household because you are essentially stocking your freezer while making Sunday dinner.

You can also bring a small portion to a friend who may need help with meals.

Other Ways to Serve Steakhouse Onion Pot Roast

Don’t limit this beef to mashed potatoes.

The onion gravy is also excellent over:

• Buttered egg noodles
• White rice
• Baked potatoes
• Canned potatoes
• Toasted rolls
• Texas toast

You can also use the shredded beef for:

• Sliders
• Nachos
• Tacos
• Loaded baked potatoes
• Open-faced roast beef sandwiches
• Beef and noodles

Can I Use Another Cut of Beef?

Chuck roast is my favorite because it becomes beautifully tender and shreds well after long, slow cooking.

You can also use:

• Beef shoulder roast
• Rump roast
• Bottom round roast
• Brisket

Keep in mind that leaner roasts won’t have exactly the same richness as chuck.

You can even take these same flavors in a different direction with pork shoulder or pork butt.

Slow Cooker Option

You can also make this in a slow cooker.

Put the sliced onions in the bottom of a 6 to 8 quart slow cooker, add the roast and then add the remaining ingredients.

For a thawed roast, cook on LOW for approximately 8 to 10 hours or HIGH for approximately 5 to 6 hours, checking for tenderness rather than relying solely on the clock.

Once the beef easily pulls apart, shred it and return it to the onion gravy before serving.

IMPORTANT: If your chuck roast is frozen, thaw it safely before using the slow cooker. Cook-from-frozen is for the oven version, not the slow cooker.

How to Store the Leftovers

Let the leftover beef and gravy cool and refrigerate it in covered containers.

I like storing the meat WITH the gravy because that keeps the beef moist when reheated.

Use refrigerated cooked beef within about 3 to 4 days.

For longer storage, portion the beef with some gravy into freezer-safe containers and freeze it.

Frequently Asked Questions

What Is the Best Beef for Steakhouse Onion Pot Roast?

Chuck roast is my first choice because its marbling and connective tissue work especially well with long, slow cooking.

Do I Have to Use a Black Speckled Roaster?

No.

It is my favorite pan for this recipe, but you can use another covered roasting pan or Dutch oven.

The important part is having enough room for the roast and onions and keeping the pan covered while it cooks.

Can I Make This Without Onion Soup Mix?

Yes.

Use the homemade beef-and-onion seasoning option in the post with dried minced onion, beef base, onion base, onion powder and garlic powder.

Is This Pot Roast Spicy?

No.

The pepperoncini add tang and acidity much more than heat.

Can I Leave Out the Pepperoncini?

You can, although I recommend at least using some pepperoncini juice because its acidity helps balance the rich beef, butter and onion gravy.

Can I Add Potatoes?

Absolutely.

Fresh potatoes can be added earlier depending on their size, but canned potatoes are especially easy. Drain and rinse them and add them for approximately the last 30 to 45 minutes so they can warm through and absorb some flavor without falling apart.

Can I Cook the Roast From Frozen?

You can cook frozen beef in the oven, although it will take longer than thawed beef.

Do not put a frozen roast directly into the slow cooker.

How Do I Know When My Pot Roast Is Done?

For this recipe, the practical test is tenderness.

The beef should easily pull apart with a fork. If it is still tough, cover the roaster again and continue cooking.

What Cheese Is Best on the Leftover Sandwich?

I like provolone, Swiss or white American because all three melt nicely without overpowering the beef and onion gravy.

Can I Freeze Steakhouse Onion Pot Roast?

Yes.

Shred the beef and freeze it with some of its gravy in meal-sized freezer containers.

This is especially helpful if you are cooking for one or two people.

What Should I Serve With Pot Roast?

Mashed potatoes, canned potatoes, green beans, carrots, corn, buttered noodles, rice, biscuits and a simple salad all work well.