Lasagna without pepperoni

2 1/2 cups tomato sauce (homemade or in a jar) salt 3/4 lb spinach leaves, stems removed 8 lasagna noodles, half spinach lasagna if available 1 1/2 cups[...]

12 uncooked lasagna noodles 1 lb lean ground beef 1 large onion , chopped 1 (14 ounce) jar spaghetti sauce 1 (8 ounce) can mushroom stems and pieces ,[...]

2 1/2 cups tomato sauce (homemade or in a jar) salt 3/4 lb spinach leaves, stems removed 8 lasagna noodles, half spinach lasagna if available 1 1/2 cups[...]