1. saute onions, chili, garlic, parsley and ground beef,
2. add diced mushrooms, red peppers, and zucchini
3. add chopped spinach
4. sprinkle feta cheese into mixture
5. boil the manacotti noodles al dente
6. stuff manacotti noodles, lay them down in layers in a baking dish
7. top with tomato sauce and top with more parsley and feta cheese.
8. bake for approx 30 min