Form 1" balls from 1/4 pound ground sirloin.
In a 9" square dish, combine some finely chopped onion, 1/4 teaspoon salt, 1/4 can tomato soup (use the rest of the can to make some soup but use 3/4 can of liquid), and 2 teaspoons lemon juice.
Cover and microwave 2 minutes, stir, microwave 2 minutes, stir, microwave 3 minutes.
Add meatballs to sauce. Cover and microwave 2 minutes, stir, microwave 2 minutes, stir, microwave 2 minutes.
Add 1/4 cup pineapple tidbits and microwave 1 minute.
