Easy Slow Cooker Cowboy Casserole for Hearty Dinners
Easy Slow Cooker Cowboy Casserole is the ultimate hearty dinner, ready in just 15 minutes of prep. After making this many times, I’ve discovered the secret to tender beef and a rich, comforting sauce. Jump to the recipe or keep reading for my best tips. If you love recipes like this, you’ll also enjoy Quick Chicken Avocado Wrap Recipe for Easy Lunch or Dinner and Burnt Honey Pie with Flaky Oat Crust Recipe.
Why This Easy Slow Cooker Cowboy Casserole for Hearty Dinners Is Pure Comfort
- Tender beef and hearty vegetables in a rich, comforting sauce
- Easy 15-minute prep and hands-off cooking
- Better than takeout and perfect for meal prepping
- My family's favorite, kid-approved recipe
What You'll Need for Easy Slow Cooker Cowboy Casserole for Hearty Dinners
Choosing the right ingredients makes a big difference, but this recipe is forgiving enough to work with what you have.
- Ground beef
- Onion
- Bell pepper
- Canned tomatoes
- Elbow macaroni
- Chili powder
- Cumin
- Salt
- Pepper
- Garlic
- Onion soup mix
- Optional: Shredded cheese
- Optional: Green onions
- Optional: Sour cream
📝 Ingredient Notes
- Ground beef: Use 80/20 ground beef for best flavor.
🛒 Tools & Equipment I Recommend
- Slow cooker — Hands-off cooking for tender beef and a rich sauce → See on Amazon
- Meat thermometer — Ensures perfectly cooked beef every time → See on Amazon
How to Make Easy Slow Cooker Cowboy Casserole for Hearty Dinners
- Step 1: Brown ground beef, onion, and bell pepper in a large skillet. Drain excess fat.
- Step 2: Transfer beef mixture to slow cooker. Add canned tomatoes, elbow macaroni, seasonings, and onion soup mix. Stir well.
- Step 3: Cover and cook on low for 6-8 hours or on high for 3-4 hours. Stir occasionally.
- Step 4: Serve hot, topped with shredded cheese, green onions, and sour cream if desired.
Cook's Tips for Perfect Easy Slow Cooker Cowboy Casserole for Hearty Dinners
- Common mistake and fix: Don't overcook the beef. Use a meat thermometer to ensure it reaches 160°F (71°C).
- Pro tip: For a thicker sauce, mix 1 tablespoon of cornstarch with 2 tablespoons of water and stir it into the casserole during the last hour of cooking.
- Pro tip: Make it a complete meal by adding a side of garlic bread or a green salad.
Storing & Reheating Easy Slow Cooker Cowboy Casserole for Hearty Dinners
Short-Term Storage
Store in an airtight container in the fridge. Store leftovers in an airtight container for up to 4 days. Make-ahead tip: Prepare the beef mixture and combine all ingredients in the slow cooker the night before. Store in the fridge overnight. In the morning, turn on the slow cooker and cook as directed.
Freezing Easy Slow Cooker Cowboy Casserole for Hearty Dinners
Freeze individual portions for up to 3 months. Thaw overnight in the fridge before reheating.
How to Reheat Without Drying It Out
Oven: Reheat in the oven at 350°F (175°C) for 15-20 minutes. Microwave: Reheat in the microwave for 2-3 minutes, stirring halfway through.
Recipe Notes
- Chef tip: For a spicier casserole, add a diced jalapeño or a pinch of cayenne pepper.
- Best substitution: Substitute ground turkey or chicken for the ground beef.
- Make-ahead: See storage section for make-ahead tips.
- Scaling: This recipe can be easily doubled or halved to suit your needs.
- Troubleshooting: If the casserole is too watery, cook it uncovered on low for the last 30 minutes to reduce the liquid.
Want to level up this recipe?
Slow cooker liner — Makes cleanup a breeze → Check price on Amazon
Easy Slow Cooker Cowboy Casserole for Hearty Dinners
Ingredients
Main Ingredients
- Ground beef
- Onion
- Bell pepper
- Canned tomatoes
- Elbow macaroni
Seasonings
- Chili powder
- Cumin
- Salt
- Pepper
- Garlic
- Onion soup mix
Optional Toppings
- Shredded cheese
- Green onions
- Sour cream
Instructions
- Step 1: Brown ground beef, onion, and bell pepper in a large skillet. Drain excess fat.
- Step 2: Transfer beef mixture to slow cooker. Add canned tomatoes, elbow macaroni, seasonings, and onion soup mix. Stir well.
- Step 3: Cover and cook on low for 6-8 hours or on high for 3-4 hours. Stir occasionally.
- Step 4: Serve hot, topped with shredded cheese, green onions, and sour cream if desired.
Notes
- Chef tip: For a spicier casserole, add a diced jalapeño or a pinch of cayenne pepper.
- Best substitution: Substitute ground turkey or chicken for the ground beef.
- Make-ahead: See storage section for make-ahead tips.
- Scaling: This recipe can be easily doubled or halved to suit your needs.
- Troubleshooting: If the casserole is too watery, cook it uncovered on low for the last 30 minutes to reduce the liquid.
Storage
- Fridge: Store leftovers in an airtight container for up to 4 days.
- Freezer: Freeze individual portions for up to 3 months. Thaw overnight in the fridge before reheating.
- Oven reheat: Reheat in the oven at 350°F (175°C) for 15-20 minutes.
- Microwave reheat: Reheat in the microwave for 2-3 minutes, stirring halfway through.
- Make ahead: Prepare the beef mixture and combine all ingredients in the slow cooker the night before. Store in the fridge overnight. In the morning, turn on the slow cooker and cook as directed.
Nutrition Per Serving
- Calories: 420
- Protein: 28g
- Fat: 18g
- Carbs: 38g
- Fiber: 4g
- Sugar: 6g
- Sodium: 850mg
- Cholesterol: 80mg
- Sat. Fat: 8g
Nutritional values are estimates only. Actual values may vary by brand and portion size.
Easy Slow Cooker Cowboy Casserole for Hearty Dinners FAQs
Yes, see the storage section for make-ahead tips.
If the casserole is too watery, cook it uncovered on low for the last 30 minutes to reduce the liquid.
Yes, follow the same instructions but cook on high pressure for 10 minutes, followed by a 10-minute natural release.
Yes, this recipe is gluten-free. However, be sure to check the labels on your seasonings and soup mix to ensure they are also gluten-free.
Yes, combine all ingredients in a large baking dish and bake at 375°F (190°C) for 45-60 minutes, stirring halfway through.
A Warm Final Note
I can’t wait for you to try Easy Slow Cooker Cowboy Casserole for Hearty Dinners and see how effortlessly it comes together. When you make it, pop back here and leave a rating or share how it turned out — I love hearing from you!
