Lean Crockery Beans

Ingredients

• 1 large onion, chopped
• 1 lb ground white turkey meat
• 2 (16 ounce) cans baked beans
• 1 (16 ounce) can pinto beans
• 1 (16 ounce) can kidney beans
• 1 (15 ounce) can butter beans
• 1 (8 ounce) can tomato sauce
• 14 cup brown sugar (more if you like)
• 1 tablespoon maple extract
• 3 tablespoons liquid smoke