Spicy Avocado-Tomato Cheese Melt
Preheat oven to 425°F (220°C). Spread lime juice on a large plate. Slice each avocado quarter lengthwise into 3 pieces. Place avocado on plate; coat with lime juice.
Place bread slices on parchment paper–lined baking sheet; spread mayonnaise over top of each bread slice. Divide arugula among bread slices. Place 2 slices of the tomato and 3 slices of the avocado on top of each bread slice. Top each with one-quarter of the cheese. Bake for 10 min. or until cheese is melted and bread is lightly toasted. Sprinkle each melt with one-quarter of the cilantro.