1 jar (26 to 28 oz) tomato pasta sauce
2 red bell peppers, chopped
1 medium onion, chopped (1/2 cup)
2 boxes (9 oz each) Green Giant frozen chopped spinach, thawed, squeezed to drain
1 can (8 oz) Muir Glen organic tomato sauce
9 uncooked lasagna noodles
1 jar (16 oz) Alfredo pasta sauce
15 slices (1 oz each) provolone cheese
1/4 cup grated Parmesan cheese