Preheat a grill or skillet/griddle over medium-high heat.

Season the burger patties lightly with salt and black pepper.

Cook the patties until browned and cooked to your preferred doneness, turning once or as needed. Cook time may vary depending on patty thickness, cooking method, and whether cooking from frozen.

During the last 1 to 2 minutes of cooking, top each patty with a slice of Swiss cheese.

Avoid pressing down on the patties while they cook, as this can squeeze out flavorful juices.

Lightly toast the brioche buns until warm and lightly crisp. Toasting helps the buns hold up better and adds texture.

Let the patties rest for 3 to 5 minutes.

Spread mayonnaise on the toasted buns.

Assemble the burgers with the patty on the bottom bun, then top with tomato slices, arugula, and red onion. Add the top bun and serve right away.

Prep: 10 minutes

Cook: 12 minutes

Yield: 4 burgers