Grilled Portabella and Arugula Burgers

• 12 cup fat-free mayonnaise
• 2 teaspoons Dijon mustard
• 6 teaspoons minced fresh rosemary
• 1 garlic clove, minced
• nonstick vegetable oil cooking spray
• 4 large portabella mushrooms, stems trimmed
• 2 tablespoons olive oil
• arugula
• whole grain buns

1. Mix mayonnaise, mustard, 2 teaspoons rosemary and garlic in small bowl.
2. Spray grill rack with nonstick spray, then prepare barbecue (medium heat).
3. Brush mushrooms all over with olive oil.
4. Sprinkle each with 1 teaspoon rosemary, then salt and pepper.
5. Grill until tender, about 10 minutes per side.
6. Spread mayonnaise mixture over buns.
7. Place mushrooms and arugula on bun bottoms.
8. Cover with bun tops.

mayonnaise, mustard, fresh rosemary, garlic, nonstick vegetable oil cooking spray, portabella mushrooms, olive oil, arugula, buns

Taken from www.food.com/recipe/grilled-portabella-and-arugula-burgers-278939 (may not work)