Grilled Chicken and Vegetable Salad

Ingredients

• 2 tsp. balsamic vinegar
• 2 tsp. Dijon mustard
• 2 green onions
• 1/2 cup + 2 Tbs. olive oil
• 1 1/2 tsp. salt
• 1 tsp. pepper
• 5 Roma tomatoes
• 2 ears of corn
• cooking spray
• 1 red onion sliced
• 1 lb. skinless, chicken breasts, halved
• 3 cups Arugula
• 1 head Romain lettuce, chopped
• 1 cup thinly slice English cucumber
• 2 cups miniature tomatoes, halved
• basil leaves
• avocado slices