Start by browning ground beef and ground Italian sausage. Drain excess grease. Add 3/4 cup water and a package of taco seasoning. Stir until combined. Pour the taco meat into a 6 to 8-quart slow cooker. Use a slow cooker liner to make cleanup easier.
Add water, minced onion, minced garlic, canned chili with no beans, pinto beans, black beans, corn, crushed tomatoes, Rotel, cubed Velveeta, and sour cream.
Cover and cook on high for 3-4 hours or low for 5-6 hours. Stir until everything is combined. Garnish with chopped cilantro and serve with corn chips.
Video
Notes
Make Ahead
To prepare this ahead of time, you can put everything into the crockpot the night before and keep it in the fridge overnight.
Variations
Try making it with ground turkey or chicken instead of ground beef. Or you could use boneless, skinless chicken breasts for a chicken version.
Leftovers
Allow the crockpot taco soup to cool and then store it in an airtight container in the fridge for 3-4 days. Or store it in the freezer for up to two months.