Portobello-Swiss Burgers

• 4 large portobello mushroom caps (4-1/2 inch)
• 1 small red onion, cut into 1/2-inch-thick slices
• 2 Tbsp. KRAFT Balsamic Vinaigrette Dressing, divided
• 4 KRAFT Big Slice Aged Swiss Cheese Slices
• 1/4 cup KRAFT Real Mayo Mayonnaise
• 1 Tbsp. GREY POUPON Dijon Mustard
• 4 kaiser rolls, split
• 1 cup loosely packed FRESH EXPRESS Spring Mix

1. Heat grill to medium-high heat.
2. Brush vegetables evenly with half the dressing.
3. Grill, dressing sides down, 2 to 3 min.
4. or until mushrooms start to soften.
5. Turn vegetables; brush with remaining dressing.
6. Grill 2 to 3 min.
7. or until vegetables are tender.
8. Remove onions from grill.
9. Top mushrooms with cheese; grill 1 min.
10. or until melted.
11. Mix mayo and mustard until blended; spread onto bottom halves of rolls.
12. Fill with spring mix, mushrooms and onions.

portobello mushroom, red onion, dressing, swiss cheese, mayonnaise, poupon, kaiser rolls, mix

Taken from www.kraftrecipes.com/recipes/portobello-swiss-burgers-179843.aspx (may not work)