Why You’ll Love This Recipe
- Hearty ingredients: Beef, potatoes, and beans make satisfying portions.
- Simple preparation: Brown the meat, chop the potatoes, and assemble.
- Pantry-friendly: Canned beans, corn, and tomato sauce keep shopping straightforward.
- Flexible cooking schedule: Choose the LOW or HIGH setting.
- Easy leftovers: Refrigerate portions for another meal.
Ingredients You’ll Need
Ground Beef
Use 1 pound of ground beef.
Lean ground beef works well, but any variety can be used if you drain the excess fat thoroughly. Brown it before adding it to the slow cooker for better flavor and smaller, evenly distributed crumbles.
Potatoes
Use 4 cups of chopped potatoes.
Russet potatoes soften readily and can help thicken the sauce. Yukon Gold potatoes hold their shape a little better while developing a tender, creamy texture.
Cut the potatoes into approximately ½-inch pieces so they cook evenly. Peel them if you prefer, or scrub well and leave thin skins on.
Kidney Beans
Use one 15-ounce can of kidney beans, drained and rinsed.
Canned beans are already cooked and can go directly into the casserole. This recipe is written for canned beans rather than dried kidney beans.
Corn
Use one 15-ounce can of corn, drained.
The corn adds sweetness and texture that balance the savory beef and tomato sauce.
Tomato Sauce
Use one 15-ounce can of plain tomato sauce.
It coats the ingredients and creates the casserole’s sauce. Avoid substituting ketchup, which is much sweeter and more concentrated.
Seasonings
You’ll need:
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 teaspoon smoked paprika
- Up to 1 teaspoon salt, to taste
- ½ teaspoon black pepper
Smoked paprika gives the dish a gentle smoky flavor. Start with less salt if your canned ingredients are already salted.
Optional Toppings
One cup of shredded cheddar or a cheese blend creates a melted topping.
Sour cream and chopped chives are optional garnishes added to individual servings.
How to Make Slow Cooker Cowboy Casserole
1. Brown the Beef
Place a large skillet over medium heat.
Add the ground beef and cook until browned and cooked through, breaking it into small crumbles. Drain excess fat.
2. Prepare the Potatoes
Wash and peel the potatoes if desired.
Cut into evenly sized ½-inch pieces. Larger chunks can take considerably longer to soften, especially in a tomato-based sauce.
3. Prepare the Slow Cooker
Lightly grease a 5- to 6-quart slow cooker.
Spread the potatoes across the bottom. Keeping them near the heat helps them cook more consistently.
4. Add the Remaining Ingredients
Layer the browned beef over the potatoes, followed by the drained kidney beans and corn.
Stir the garlic powder, onion powder, smoked paprika, salt, and pepper into the tomato sauce. Pour evenly over the ingredients.
Gently settle the mixture so the sauce reaches between the layers.
5. Cook Until Tender
Cover and cook on LOW for 6–8 hours or HIGH for 3–4 hours, until the potatoes are tender.
Check a few potato pieces with a fork before serving. Slow cooker temperatures vary, and the tomato sauce can slow potato softening, so allow additional time if needed.
If the mixture appears dry before the potatoes finish cooking, add a small splash of hot water.
6. Add Cheese
If using cheese, sprinkle it evenly over the casserole during the last 20–30 minutes of cooking, once the potatoes are nearly tender.
Cover again and let the cheese melt.
7. Serve
Spoon into bowls and add sour cream or chopped chives if desired.
The casserole will be soft and scoopable rather than firm enough to cut into squares.
Tips for the Best Results
Cut the Potatoes Small and Evenly
Consistent pieces finish cooking at a similar time. Avoid leaving a few large chunks among smaller ones.
Drain the Beef and Canned Vegetables
Excess grease makes the dish oily, while packing liquid from the corn and beans can dilute the tomato sauce.
Season the Sauce Before Pouring
Mixing the spices into the tomato sauce distributes them more evenly than sprinkling them over one area.
Keep the Lid Closed
Frequent opening releases heat and can extend cooking time. Check closer to the end of the suggested cooking window.
Judge Doneness by the Potatoes
The beef and canned ingredients are already cooked. Tender potatoes are the main sign that the casserole is ready.
Add Cheese at the End
The cheese needs only enough time to melt. Adding it at the beginning can cause it to separate during the long cooking period.
Easy Variations
Spicy Cowboy Casserole
Add diced jalapeño, crushed red pepper flakes, or a little hot sauce to the tomato sauce.
Different Beans
Replace the kidney beans with drained and rinsed canned pinto beans or black beans.
Ground Turkey Version
Use ground turkey in place of beef. Brown and drain it before assembling.
Add Bell Pepper
Layer a finely chopped bell pepper with the beef for extra vegetable flavor.
Barbecue-Inspired Version
Replace a small portion of the tomato sauce with barbecue sauce. This adds sweetness and changes the seasoning balance, so taste before adding extra salt.
What to Serve with Cowboy Casserole
This casserole includes meat, potatoes, beans, and vegetables, making it substantial enough to serve on its own.
For a larger meal, pair it with cornbread, dinner rolls, or a crisp green salad. Steamed green beans or roasted broccoli also provide a fresh contrast to the rich sauce and cheese.
Set out optional toppings separately so everyone can finish their portion to taste.
Make-Ahead Tips
Brown the beef up to one day ahead, then cool promptly and refrigerate in a covered container.
Drain the beans and corn and measure the seasonings ahead of time. Chop the potatoes close to assembly, or refrigerate them covered in cold water and drain thoroughly before using.
Assemble when ready to begin cooking. Follow your slow cooker manufacturer’s guidance rather than placing a cold ceramic insert directly into a heated base.
Storage and Reheating
Refrigerate leftovers promptly in covered containers for up to 3–4 days.
Reheat individual portions in the microwave, stirring partway through, until hot throughout. You can also warm leftovers in a covered saucepan over low heat, adding a splash of water if the sauce has thickened.
Freeze cooled portions for up to 3 months for best quality. Thaw overnight in the refrigerator before reheating. The potatoes may become softer after freezing.
Frequently Asked Questions
Can I add the ground beef raw?
Brown it first for this recipe. Browning develops flavor, lets you drain excess fat, and prevents the meat from cooking into large clumps.
Do I need to peel the potatoes?
No. Thin-skinned potatoes can be left unpeeled if scrubbed well. Peel russets if you prefer a smoother texture.
Why are the potatoes still firm?
The pieces may be too large, the slow cooker may run cool, or the tomato sauce may be slowing softening. Continue cooking until fork-tender.
Does this recipe need broth?
Not usually. The tomato sauce and moisture retained by the slow cooker provide the cooking liquid. Add a small amount of hot water only if the mixture looks dry.
Can I use frozen corn?
Yes. Use approximately 1½ cups frozen corn in place of the drained canned corn.
Can I leave off the cheese?
Yes. The casserole is flavorful and hearty without it.
Can I double the recipe?
Only if your slow cooker has sufficient capacity. Follow its recommended fill level and allow extra time if necessary.