Layered Enchilada Casserole

Combine the tomatoes, onion, and garlic in a blender or food processor. Process until smooth. Transfer the mixture to a saucepan over medium-high heat. Add the cayenne, salt, and tomato paste. Mix well and bring to a boil. Reduce the heat to a simmer and let cook for 10 minutes.

Add the ground beef to a skillet over medium-high heat. Cook, stirring frequently, until cooked through. Drain off any excess grease.

Place three tortillas in the bottom of the crock pot. Top with 1/3 of the ground beef, 1/3 of the tomato sauce mixture, and 1/3 of the shredded cheese. Repeat the layers two more times, ending with cheese.

Cover the crock pot and cook on high heat for 1 1/2 to 2 hours or until heated through.