Bean Rarebit

Details

Ingredients

• ¼ cup butter
• ¼ cup chopped onion
• ¼ cup all-purpose flour
• ½ teaspoon salt
• 2 cups milk
• 1 teaspoon Dijon mustard
• 2 cups shredded Cheddar cheese
• 1 (15.5 ounce) can white beans, drained and rinsed