Preheat the broiler to 500°F and place a rack in the top third of the oven, about 8-10 inches away from the broiler.
Place watermelon wedges in a single row on a parchment-lined baking sheet.
Top each wedge with a square of cheese.
Place the baking sheet under the broiler just until the cheese melts and gets lightly tinged with golden brown, about 2-5 minutes. Watch carefully and rotate the pan if you notice a hot spot.
With a spatula, transfer the wedges to a serving platter and sprinkle with roasted almonds, place 2-3 mint leaves on each wedge, spoon a ⅛-1/4 teaspoon of olive oil over the top, and toss a pinch of flakey salt to finish.
Serve warm. This appetizer still tastes delicious when it cools off, so don't stress if it doesn't stay warm!
This nutritional information has been automatically calculated, and as such, may be incomplete or inaccurate. Please reference the specific ingredients you use for the most accurate nutritional information.