We’ve hacked traditional chicken potpie for a 20-minute version that’s just as comforting. No canned or frozen filling here. Instead, matchstick-cut carrots, frozen peas, and rotisserie chicken save time, as does a wide skillet for sautéing the vegetables and building a creamy sauce. Instead of a pastry crust, we ladle the filling right over hearty whole-grain bread slices. The toast absorbs the liquid so you can easily cut in with a knife and fork (if you like to drag your bread through a sauce at the end of a meal, think of this as the happy extreme).
Heat oil in a large nonstick skillet over medium-high. Add mushrooms; cook 6 minutes or until browned, stirring occasionally. Sprinkle flour over pan; cook 1 minute, stirring constantly. Add stock; cook 4 minutes or until slightly thickened. Stir in peas, carrots, salt, pepper, and chicken; cook 2 minutes or until thoroughly heated.
Spoon chicken mixture evenly over toasted bread slices. Sprinkle with parsley.