French Onion Chicken

Name: French Onion Chicken
Prep time: 5 min
Cook time: 40 min
Total time: 45 min
Cuisine: American
Ingredients: 2 pounds boneless, skinless chicken breasts, each breast sliced crosswise into fillets about 1/4 inch thick; 1/2 cup all-purpose flour (with a few punches of onion powder, garlic salt, and black pepper mixed in) for dredging; 1/4 cup extra-virgin olive oil; 4 tablespoons (1/2 stick) salted butter; 2 Vidalia (sweet) onions, sliced into strands; 2 (18.5-ounce) cans non-condensed French onion soup; 6-8 slices Texas toast (any variety) or frozen garlic bread); 3 tablespoons cornstarch; 1 packet onion soup/dip mix (optional); 8-10 Swiss cheese slices; Crispy fried onions, for serving (optional)