Stuffed Tomatoes

Ingredients

• 6 large ripe tomatoes
• 1 (10 oz.) pkg. frozen chopped spinach, thawed
• 3 Tbsp. olive oil
• 3/4 c. finely chopped onion
• 1/2 c. Italian-style bread crumbs
• 1/2 tsp. salt
• 1/8 tsp. ground pepper (optional)
• 2 or more Tbsp. grated Parmesan cheese (more if you love cheese)