Open-Face Veg Burgers With Sauteed Onions

For all those vegetarians! From Better Homes & Gardens.

• Ready In: 20 mins
• Serves: 4

Ingredients

• 2  tablespoons olive oil
• 1  large sweet onion, halved and thinly sliced (about 3 cups)
• 4  veggie burgers (10-oz. pkg.)
• 2  tablespoons mayonnaise or 2  tablespoons  salad dressing
• 1  teaspoon prepared yellow mustard
• 4 1⁄2 inches  slice  ciabatta, toasted
• 1  cup  fresh  baby spinach leaves
• 2  tablespoons  steak sauce

Directions

1. In large skillet heat olive oil over medium-high heat. Add onion slices and cook 8 to 10 minutes or until very tender, stirring frequently.
2. Meanwhile, prepare burgers according to package microwave directions.
3. In small bowl combine mayonnaise and mustard; spread mixture on one side of each bread slice. Top bread with spinach and burger. Stir steak sauce into cooked onions. Spoon onion mixture on burgers. Makes 4 servings.