Substitute 1 drained 7-oz. jar roasted red peppers for the marinated cooked fresh pepper strips.
Use Your Skillet
If you don't have a panini maker, cook sandwiches in a skillet instead. Spray large skillet with cooking spray. Heat on medium heat. Add sandwiches; cook 5 min. on each side or until golden brown on both sides, occasionally pressing down on sandwiches with back of spatula to flatten slightly.