Spinach Meatballs

Ingredients

• 1 1/2 pound beef ground
• 1/2 cup onions chopped
• 1 each eggs
• 1/4 cup parmesan, parmigiano-reggiano cheese, grated grated
• 1 each spinach frozen package, chopped, thawed, drained
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon garlic powder
• 1 cup vegetable stock or chicken or beef
• 8 ounces tomato sauce
• 1/2 cup wine dry, red
• 1 tablespoon cornstarch