Creating your Slow Cooker Cowboy Casserole is a simple process if you follow these steps:

1. Cook the Meat: In a skillet over medium heat, brown the ground beef (or turkey) along with the chopped onion and minced garlic until the meat is fully cooked. Drain excess fat if necessary.

2. Combine Ingredients: Transfer the cooked meat mixture to your slow cooker. Stir in the black beans, corn, diced tomatoes, and taco seasoning. Mix until well combined.

3. Add Mixed Vegetables: If using, stir in the frozen mixed vegetables to the mixture for added nutrition and color.

4. Set the Slow Cooker: Cover and set the slow cooker to low for 6 to 8 hours or high for 3 to 4 hours, depending on your schedule.

5. Add Cheese and Chips: About 30 minutes before serving, stir in the shredded cheddar cheese, and top with crushed tortilla chips for added texture and crunch.

6. Garnish: If desired, sprinkle with fresh cilantro or chopped green onions before serving to add a pop of color and flavor.

7. Check for Seasoning: Taste the casserole before serving, and adjust seasoning with salt and pepper as necessary.

By following these straightforward steps, you’re sure to achieve a delicious Slow Cooker Cowboy Casserole that everyone will rave about!