Allrecipes on Instagram: "You already know this Cowboy Mashed Potato Casserole is gonna be GOOD! 🤠 To get the recipe, click the link in @allrecipes bio or continue reading! ⬇️ Ingredients: cooking spray 6 strips bacon 2 pounds baking potatoes, peeled and chopped 1 (5 ounce) can evaporated milk or whole milk 2 tablespoons butter 1 1/2 teaspoons salt, divided 1/2 teaspoon freshly ground black pepper, divided 1 pound ground beef 1 cup chopped onion 1 green bell pepper, chopped 1 cup frozen whole k