Open-Face Veg Burgers With Sauteed Onions - cooking recipe

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

Preparation

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.
Meanwhile, prepare burgers according to package microwave directions.
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.