Mushroom Melody

1/4 cup vegetable oil 1-1/2 lbs. beef 1 small garlic clove, crushed 1/2 cup chopped onion 1-1/2 green peppers, cut in julienne strips 1 can tomatoes (about 1 lb.) 1 beef bouillon cube 1 tbsp. cornstarch 2 tbsp. water 2 tbsp. soy sauce 1 tsp. sugar 1/2 tsp. salt 3 cups wide noodles 1 cup…