Slow-Cooker Cowboy Casserole Recipe for Savory Weeknight Dinners

Why You’ll Love this Cowboy Casserole

Inspired by a popular cowboy soup, this Crock Pot Cowboy Casserole keeps all the comforting flavors but turns them into a thick, hearty one-pot meal. I removed the broth from the soup base, added melted cheese, and built a casserole that’s high in protein, simple to prep, and perfect for weeknights, potlucks, or game day.

Here’s what makes it a crowd-pleaser:

Well-balanced: tender potatoes and carrots, fiber-rich beans, and sweet corn.
High protein & gluten-free: each serving includes substantial protein from ground beef and the recipe is naturally gluten-free when canned ingredients are labeled accordingly.
Hands-off cooking: only about 10 minutes of prep—then the slow cooker does the work.
Great for groups: feeds a crowd, travels well, and reheats easily for leftovers.

Need more crowd-friendly options? Beef-based slow cooker recipes like sloppy joes, shredded beef tacos, or chili are also easy to scale and serve.

Top Tips Before You Start

Uniform potato slices: slice potatoes about 1/4-inch thick so they cook evenly and hold their shape.
Season in stages: season the beef while browning, season the full casserole before cooking, and taste-adjust at the end.
Finish with garnishes: sour cream, chives, parsley, green onions, or red pepper flakes add brightness and texture.

cowboy casserole on a plate with sour cream, chives, and a fork.

Ingredients You’ll Need

ground beef, carrots, corn, tomatoes potatoes, onion, and garlic on a cutting board.

Ground beef: the main protein—browned for flavor.
Yellow onion & garlic: the aromatic base.
Yukon Gold potatoes: sliced ~1/4-inch thick so they stay tender but intact.
Carrots: peeled and sliced into rounds.
Tomato paste & diced tomatoes: build depth and color.
Black-eyed peas & corn: add heartiness, fiber, and a touch of sweetness.
Seasonings: kosher salt, Italian seasoning, smoked paprika, chili powder, and optional red pepper flakes.
Shredded cheese (optional): melts on top for a bubbly finish.

Jump to Recipe

How to Make Crock Pot Cowboy Casserole

ground beef and onion browned in a skillet.

Step 1: Sauté and brown — Heat olive oil in a large skillet. Cook the diced onion over medium-high heat until soft, add the ground beef and brown. Stir in minced garlic and kosher salt and cook until fragrant.

cowboy casserole ingredients in a crock pot.

Step 2: Layer and combine — Transfer the beef mixture to the slow cooker. Add potatoes, carrots, tomato paste, diced tomatoes (with juices), black-eyed peas, corn, and the seasonings. Stir gently to combine.

cowboy casserole cooking in a slow cooker.

Step 3: Slow cook — Cover and cook on low for 6–8 hours or on high for 3–4 hours, until potatoes and carrots are fork-tender. Taste and adjust seasoning before finishing.

crock pot cowboy casserole cooked and topped with melted cheese.

Step 4: Finish with cheese — If using cheese, sprinkle it on top, cover, and set the cooker to high for 10–15 minutes until melted and bubbly. Garnish and serve warm.

This recipe was developed with support from beef industry partners; it highlights beef as a versatile protein in slow-cooker comfort food.

Variations & Swaps

Extra vegetables: bell peppers, mushrooms, or diced sweet potatoes work well.
Different beans: swap black-eyed peas for black beans or pinto beans.
Dairy-free: omit the cheese or use a dairy-free alternative.
More heat: add sliced jalapeño, hot sauce, or extra red pepper flakes.

a plate of cowboy casserole with sour cream and melted cheese.

Crock Pot Cowboy Casserole

A high-protein, gluten-free one-pot dinner that simmers into tender potatoes, carrots, and savory beef with beans and corn. Easy prep and excellent for feeding a crowd.

Molly Thompson

Servings: 6 people

Ingredients

1 Tablespoon olive oil
1 medium yellow onion, diced
2 lbs ground beef
4 cloves garlic, minced
1 1/2 teaspoons kosher salt, plus more to taste
1 lb Yukon Gold potatoes, sliced 1/4-inch thick
3 carrots, peeled and sliced into rounds
4 Tablespoons tomato paste
1 (14.5 oz) can diced tomatoes, with juices
1 (15 oz) can black-eyed peas, drained and rinsed
1 (15 oz) can corn, drained
2 teaspoons Italian seasoning
1 teaspoon smoked paprika
2 teaspoons chili powder
1 1/2 cups shredded cheese (optional)

Instructions

1. Heat the olive oil in a large skillet. Add the diced onion and cook until soft. Add the ground beef and brown, breaking it up as it cooks. Stir in garlic and kosher salt and cook another minute until fragrant.
2. Transfer the beef and onion to the crock pot. Add the sliced potatoes, carrots, tomato paste, diced tomatoes with juices, black-eyed peas, corn, Italian seasoning, smoked paprika, and chili powder. Stir gently to combine.
3. Cover and cook on low for 6–8 hours or on high for 3–4 hours, until potatoes and carrots are fork-tender. Taste and adjust seasonings as needed.
4. If using cheese, sprinkle shredded cheese over the top, cover, and cook on high for 10–15 minutes until melted and bubbly. Serve with desired garnishes.

Notes

Storage: Cool completely, then store in an airtight container in the refrigerator for up to 4 days. Reheat portions on the stove or in the microwave until heated through.

Make-ahead & freezer: Cook the beef and onion, then combine with the remaining ingredients (omit cheese). Refrigerate up to 4 days or freeze in a labeled freezer bag for up to 3 months. Thaw overnight in the fridge before slow-cooking as directed.

Seasoning: Taste and adjust salt and spices throughout cooking to suit your preference.

Nutrition

Serving: 1 serving
| Calories: 540 kcal
| Carbohydrates: 54 g
| Protein: 48 g
| Fat: 16 g

Nutrition information is an estimate and should be used as a guideline.

Recipe FAQs

Is it gluten-free?

Yes. The recipe uses naturally gluten-free ingredients—ground beef, vegetables, beans—provided canned goods and spice mixes are labeled gluten free.

Can this be a freezer meal?

Yes. Cook the beef and mix it with the other ingredients (omit cheese), freeze flat in a freezer bag, thaw overnight, then cook in the slow cooker as directed.

How do I store cowboy casserole?

Allow it to cool, then store in an airtight container in the refrigerator for 4–5 days. Reheat on the stove or in the microwave until warmed through.