Preheat your oven to 450°F (232°C).
Place the flatbread on a baking sheet lined with parchment paper.
Brush the flatbread lightly with olive oil, ensuring an even coating.
Sprinkle the shredded mozzarella cheese evenly over the flatbread, followed by the crumbled goat cheese.
Distribute the sliced red onions and bell peppers over the cheese layer.
Season with red pepper flakes, salt, and pepper to taste.
Bake in the preheated oven for 10-12 minutes, or until the cheese is melted and bubbly, and the edges of the flatbread are golden brown.
Remove the pizza from the oven and drizzle hot honey generously over the top.
Let the pizza cool for a minute, then garnish with fresh arugula before slicing and serving.