Sweet & Sour Meatballs over Rice

This was originally a recipe for an appetizer that I changed up a little. I often substitute frozen meatballs from Costco which makes for a quick meal.

Meatballs:
1 lb. ground beef
1 egg
1/2 cup soft bread crumbs (freshly ground if possible)
2-3 Tbsp. milk or evaporated milk
Salt & Pepper
Dash onion powder

Combine - keeping in mind a fluffy texture. Form into 16 1-oz meatballs (or 32 smaller). Melt 2 Tbsp. butter in a skillet and add meatballs, turning to evenly brown, then turn down heat to cook through.

Sweet and Sour Sauce:
1 (20 oz.) can pineapple tidbits or chunks, all juice and 1/2 of the pineapple
1/4 c. brown sugar
6 Tbsp. ketchup
2 Tbsp. vinegar
1 Tbsp. cornstarch
1 Tbsp. soy sauce
1 clove garlic, minced
1/2 onion, diced
1 large bell pepper, diced (we like 1/2 red and 1/2 yellow)

Mix together all ingredients except bell pepper and pineapple and simmer over a medium heat until onions are tender. Add cooked meatballs, bell pepper, and pineapple and simmer until bell peppers are crisp tender and meatballs and pineapple are warmed through. Serve over cooked rice.