For those nights when you'd like meatloaf but don't have time for it to cook in the oven, I make mine in the microwave using this recipe.
1 egg 1 tsp Worcestershire sauce
1-1/2 lb. ground beef 2 tsp dry mustard
1 cup fresh bread crumbs 1/4 tsp pepper
1 onion finely chopped 1 Tbsp packed brown sugar
3/4 cup tomato sauce 1 Tbsp white vinegar
In large bowl, beat egg until foamy. Add beef, crumbs, onion, 1/2 cup tomato sauce, Worcestshire sauce, 1 tsp mustard and pepper; mix well. form into 9x5 loaf, place in 11x7 baking dish. Cover with vented plastic wrap and microwave at High for 5 minutes or until no longer pink, rotating dish once. Drain off fat. Microwave covered at Medium for 10-12 minutes or until meat is cooked through, rotating twice. Drain off fat. In bowl mix together brown sugar, vingar, remaining tomato sauce and mustard, spread over loaf. Microwave, uncovered, at High for 2 minutes or until sauce is hot. Makes about 6 servings.
I sometimes substitute spaghetti sauce for the tomato sauce, and then just use more sauce on top instead of all the other stuff.