11/2 quarts water 2  packets dry onion soup mix 4  ounces enriched spaghetti, broken 1/3 cup butter or margarine 2/3 cup coarsely chopped onion 1  cup green pepper strips 2  or 3 zucchini (about 3/4 pound), washed, ends trimmed, and zucchini cut in about 1/2-inch slices 4  medium tomatoes, peeled and cut in wedges 1/4 [...]