Tender chicken is cooked with garlic, bell pepper, onion, kalamata olives, and capers, then piled into hoagie buns with melty mozzarella and feta cheeses.
Combine chicken, olive oil, garlic, red pepper flakes, salt, and black pepper in a large bowl; toss to coat.
Heat a large pot or Dutch oven over medium-high heat. Add chicken mixture and cook, stirring frequently, until chicken is no longer pink in the center, about 5 minutes. Add yellow bell pepper and onion; cook until onion begins to soften, about 5 minutes. Mix in olives and capers until combined. Stir in mozzarella cheese until melted. Remove from heat and stir in feta cheese.
Spread each hoagie roll with 1 tablespoon artichoke aioli. Evenly distribute the chicken mixture among the 4 sandwiches. Sprinkle each sandwich with 1 tablespoon basil.
Per Serving: 494 calories; protein 34.7g; carbohydrates 40.6g; fat 20.8g; cholesterol 85.3mg; sodium 1185.1mg.