Hearty Cowboy Casserole Recipe with Cheesy Beef and Beans

Cowboy Casserole is an easy, flavorful weeknight meal you can make on the grill. This version uses leftover smoked brisket combined with Rotel tomatoes, green chiles, beans, sour cream, taco seasoning and a crunchy, cheesy tater tot topping.

If you want hearty comfort food that comes together quickly, this brisket tater tot casserole delivers. With just a few pantry staples and a cast iron skillet, it finishes nicely on a pellet or gas grill for a smoky, homey dinner.

Why You Will Love This Cowboy Casserole

• Delicious: Smoky brisket, Tex‑Mex flavors and melty cheese combine with crispy tater tots for a satisfying texture and flavor contrast.
• Simple to prepare: Toss the filling, layer the skillet, and let the grill do the work. It’s a low‑effort dish perfect for busy weeknights or feeding a crowd.
• Versatile: This recipe is ideal for using leftover brisket but also adapts well to ground beef, roast beef, or venison and a variety of beans and cheeses.

Step‑By‑Step Directions for Tater Tot Casserole

1. Chop the smoked brisket into bite‑sized pieces.
2. In a bowl, stir together the Rotel tomatoes, green chiles, sour cream and taco seasoning until well combined.
3. Pour the mixture into a cast iron skillet or another oven‑safe pan suitable for the grill.
4. Layer beans (if using), chopped brisket and about half of the shredded cheese over the tomato mixture.
5. Arrange a single layer of frozen tater tots across the top and brush them lightly with olive oil to promote browning.
6. Place the skillet on a preheated grill set to 350°F (about 175°C). Close the lid and cook for approximately 45 minutes, until the filling is hot and bubbling.
7. Sprinkle the remaining cheese over the tater tots and continue cooking with the lid closed until the cheese melts and the tots are golden and crisp.
8. Remove the skillet from the grill and garnish with diced tomatoes and chopped cilantro, if desired. Serve immediately with extra sour cream on the side.

How to Store and Reheat Cowboy Casserole

• Storage: Refrigerate leftovers in an airtight container for up to 3 days.
• Reheat: Transfer to an oven‑safe dish, cover with foil and bake at 350°F for 12–15 minutes, or until heated through. For a crisper top, remove the foil for the last few minutes.

Variations for Cowboy Casserole

• Meat: Substitute seasoned ground beef, leftover roast beef, or ground venison if you don’t have brisket.
• Beans & vegetables: Use pinto, kidney or black beans. Stir in frozen corn or mixed vegetables for added color and nutrition.
• Cheese: Try Pepper Jack, Monterey Jack or Colby‑Jack for different levels of creaminess and heat.

More Leftover Brisket Ideas

• Brisket Queso — a hearty dip that’s perfect for game day or parties.
• Brisket Stuffed Poblano Peppers — a flavorful, simple entrée using leftover meat.
• Brisket Hashbrown Casserole — another comforting casserole option that showcases leftover brisket.

This Cowboy Casserole is a reliable, delicious way to turn leftover brisket into a new family favorite. Quick to assemble and finished on the grill, it’s a great change of pace for weeknight dinners.

If you try this recipe, please leave a comment and rating to let others know how it turned out.

Cowboy Casserole

A satisfying weeknight casserole that uses leftover smoked brisket, Rotel tomatoes, green chiles, sour cream, taco seasoning and a crispy tater tot topping.

Prep Time
5 mins

Cook Time
50 mins

Total Time
55 mins

Course: Beef

Cuisine: American

Keyword: brisket tater tot casserole, leftover brisket recipe, tater tot casserole

Servings: 6 Servings

Calories: 720kcal

Author: Milisa

Ingredients

• 1 pound smoked brisket, chopped
• 10 ounce can Rotel tomatoes with green chiles
• 4 ounce can green chiles
• ½ cup sour cream, plus more for serving
• ¼ cup taco seasoning
• 2 cups shredded cheddar cheese, divided
• 28 ounce frozen tater tots
• 1 tablespoon olive oil
• 1 tablespoon chopped cilantro (optional)
• ½ cup diced tomatoes (optional)

Instructions

• Preheat the grill to 350°F. A pellet grill with hickory pellets works well for added smoke.
• In a bowl, combine Rotel tomatoes, green chiles, sour cream and taco seasoning.
• Pour the mixture into a cast iron skillet.
• Top with beans (if using), chopped brisket and half the cheese. Add a layer of tater tots and brush them with olive oil.
• Place the skillet on the hot grill, close the lid, and cook for about 45 minutes.
• Sprinkle the remaining cheese over the tots and continue grilling until the cheese is melted and the tots are golden.
• Remove from the grill and garnish with diced tomatoes and cilantro if desired.
• Serve immediately with extra sour cream on the side.

Notes

Storage: Keep leftovers in an airtight container in the refrigerator for up to 3 days.

Reheat: Cover with foil and bake at 350°F for 12–15 minutes or until warmed through; remove foil at the end to crisp the top.

Variations:

Meat: Use seasoned ground beef, roast beef or ground venison instead of brisket.

Beans & Vegetables: Pinto, kidney or black beans work well. Add frozen corn or mixed vegetables for variety.

Cheese: Pepper Jack, Monterey Jack or Colby‑Jack are tasty alternatives.

Nutrition

Calories: 720kcal
| Carbohydrates: 46 g
| Protein: 35 g
| Fat: 45 g