Fiery Volcanos

This is from my mom's kitchen, I don't know where she got it. But it's good! And easy to make. I often serve this to company.

Fiery Volcanos
Ingredients:
1 ½ cups rice
1 lb. ground beef
¼ cup onion, chopped
1 tsp. salt
¼ tsp. pepper
1 15oz. can pineapple tidbits
1 4oz. can mushroom pieces
1 15oz. can tomato sauce
2 TBSP. vinegar
1 TBSP. cornstarch


Directions:
Prepare rice.

Brown and drain ground beef. When meat is half cooked, add the onion. Then add the salt, pepper, pineapple, mushrooms, tomato sauce & vinegar.

Remove ½ cup of the broth and wisk in the cornstarch. Return it to the pan and bring to a boil to thicken. To serve, spoon over rice “volcanos”.