Prep crockpot with baking spray.
Add 1 tablespoon of olive oil in a skillet adding the onion until it turns translucent. Add crushed garlic to the skillet. Add the ground beef until brown.
Combine the tomato sauce, diced tomatoes, and spices in a sauce pan, cooking all ingredients until warm.
Begin to layer the lasagna in the crock pot. Bottom layer of the lasagna a large spoonful meat sauce. The second layer will be uncooked lasagna noodles (break to fit).
Add a layer of cooked hamburger meat. Then top with cheeses. Repeat with sauce, noodles meat and cheeses until all are used up. Top with an extra layer of shredded mozzarella cheese.
Cover and cook on low for 4 to 5 hours. Allow to set briefly prior to serving.