spinach meatballs

Ingredients For spinach meatballs

• 1.5 lb

  ground beef
• 1/2 c

  dry red wine
• 8 oz

  tomato sauce
• 1 c

  beef broth
• 1/4 tsp

  garlic powder
• 1/4 tsp

  pepper
• 1/2 tsp

  salt
• 1 pkg

  spinach, thawed and drained
• 1/4 c

  parmesan cheese, grated
• 1

  egg
• 1/2 c

  onion, chopped
• 1 Tbsp

  cornstarch