Step 1

Brown ground beef with onion and garlic and drain.

Step 2

Combine ground beef with tomato sauce, chili and mushrooms.

Step 3

Spray your crock with cooking spray.

Step 4

Layer four tortillas to cover the bottom of your crock.

Step 5

Put 1/3 of your beef mixture on the tortillas.

Step 6

Put 1 Cup of the cheese on top of the meat.

Step 7

Repeat layers two more times (3 total layers)

Step 8

Top cheese with olives and drizzle the beef broth on top of the casserole.

Step 9

Cover with lid and cook on high for 1 1/2 to 3 hours.