Preheat oven to 425 degrees, then line a baking sheet with Parchment paper.
Warm oil in a medium saucepan, then add the onions. Caramelize onions by slowly cooking them over low heat, stirring every few minutes until they are deep brown. This process takes about 30 minutes.
While the onions are caramelizing, slice the dried figs into circular pieces. If you are adding cherry tomatoes, slice 6-8 tomatoes lengthwise. Set aside
Place Naan bread on the prepared baking sheet, then spread a thin layer of ricotta cheese over the breads. Next add a layer of caramelized onions. Top with figs and tomatoes then sprinkle the remaining ricotta cheese over the top. Sprinkle with salt and pepper and bake in the oven for ~7-8 minutes.
Add fresh thyme, then cut into slices and enjoy.