skillet white beans

Ingredients

• - one large sweet onion, such as vidalia or maui, halved lengthwise and thinly sliced
• - 3 tablespoons butter
• - 1/2 cup maple syrup
• - 1/3 cup white balsamic vinegar or lemon juice
• - 2 tablespoons packed brown sugar
• - 2 tablespoons snipped fresh sage
• - 2 tablespoons tomato paste
• - 1 teaspoon salt
• - 1/2 teaspoon freshly ground black pepper
• - two cans navy beans, rinsed and drained, 1516 ounces each
• - two cans butter beans, rinsed and drained, 15 to 16 ounces each
• - one can garbanzo beans, rinsed and drained, 1516 ounces
• - sour cream
• - yellow, red, and or green tomatoes, chopped, optional
• - fresh sage leaves, optional