Lasagna with stems

1 lb ground beef 1/4 cup chopped onions or 1 tablespoon instant minced onion 1 (8 ounce) can tomato sauce 1 (6 ounce) can tomato paste 1 (4 ounce) can Green[...]

2 (1 1/4 lb) packages diced tomatoes 1 (29 ounce) can tomato sauce 1 (12 ounce) can tomato paste 1 (13 1/4 ounce) can mushroom stems and pieces 1 small summer[...]

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[...]