Crock pot tasty beans Recipe

Ingredients

• 8 slices bacon, diced
• 2 onions, cut into quarters and sliced
• 3/4 cup brown sugar, packed
• 1/2 cup vinegar
• 1 teaspoon salt
• 1 teaspoon ground mustard
• 1/2 teaspoon garlic powder
• 1 (16 ounce) can baked beans, undrained
• 1 (15 1/2 ounce) can butter beans, drained and rinsed
• 1 (16 ounce) can kidney beans, drained and rinsed
• 1 (14 1/2 ounce) can green beans, cut and drained