Leftovers for Brunch: Chicken Frittata with Boston Salad

Name: Leftovers for Brunch: Chicken Frittata with Boston Salad
Ingredients: Olive oil, to cook; 1 cup chicken and vegetables, cut up a little, recipe above; 1 large tomato, diced; 1/4 cup sliced scallions; 6 large eggs; 1/4 cup cream; 1/2 cup shredded Gruyere cheese; 1 minced shallot; 1/2 tablespoon Dijon mustard; 1 tablespoon rice vinegar; 1/4 cup olive oil; 1 large head Boston bibb lettuce, cleaned, de-cored and separated into leaves; 1 tablespoon chopped chives; Salt and black pepper, to taste