01 -
Spread mustard on one slice of bread. Top with roasted red pepper strips, tomato, arugula, shredded gouda cheese, and the second slice of bread. Set aside.
02 -
Heat olive oil in a medium nonstick skillet over medium-high heat. Add sandwich; cook for 2 to 3 minutes, or until golden brown. Flip the sandwich, then cook for an additional 3 to 4 minutes or until the cheese has melted.