Cowboy casserole layers ground beef, corn, beans, and cheese under a tater tot crust for a hearty family bake. This protein-rich, rustic dish is budget-friendly comfort food with a Wild West flair.
Preheat the oven to 375°F and grease a 9x13-inch casserole dish with olive oil.
Heat olive oil in a large skillet over medium-high heat, add chopped onion, and sauté until translucent, about 3 minutes.
Add ground beef to the skillet and cook, breaking it up, until browned and no longer pink; drain excess fat as needed.
Stir in garlic powder, smoked paprika, salt, black pepper, canned corn, and kidney beans; mix well and simmer for 2 minutes to meld flavors.
Pour the beef mixture into the casserole dish, sprinkle evenly with shredded cheddar cheese, then arrange tater tots in a single layer on top.
Bake uncovered for 30–35 minutes or until tater tots are crisp and golden brown, and the casserole is bubbling at the edges.
Let the casserole rest for 5–10 minutes before serving to help layers firm up and make portioning easier.