Brown beef with onion, Italian seasoning, and garlic powder.
Add veggies, spinach, sauce, tomatoes and simmer for 10-15 minutes.
Cut zucchini, and sprinkle with salt .
Spray cookie sheet with Pam, and bake on a at 425F for 5 minutes each side.
Layer 13" x 9" pan with meat mixture, zucchini and Ricotta mixture.
Repeat layering until out of ingredients.
Add mozzarella on top.
Bake at 375F covered for 50 minutes then remove foil cover last 10 minutes.