Chicken with Olives and Capers

Name: Chicken with Olives and Capers
Prep time: 25 min
Cook time: 20 min
Total time: 45 min
Cuisine: Mediterranean
Ingredients: 4 large boneless, skinless chicken breasts; 3 T olive oil, divided; 2 tsp. Poultry Seasoning (see notes); salt and fresh-ground black pepper to taste; 6 oz. can black olives, drained; 1/4 cup chopped green olives; 1/4 cup chopped capers; 2 T chopped red onion; 1 tsp. minced garlic; 2 T Dijon mustard; 2 T fresh-squeezed lemon juice (see notes)