Ingredients

• 2 tubes (6 ounces each) refrigerated buttermilk biscuits
• 1-1/2 pounds ground beef
• 1/2 cup finely chopped onion
• 2 eggs
• 1 package (10 ounces) frozen chopped spinach, thawed and squeezed dry
• 1 can (4 ounces) mushroom stems and pieces, drained
• 4 ounces crumbled feta cheese
• 1/4 cup grated Parmesan cheese
• 1-1/2 teaspoons garlic powder
• Salt and pepper to taste
• 1 to 2 tablespoons butter, melted