Make the Flatbread: Mix the instant yeast, sugar, warm water, and oil in the small bowl.

In a larger bowl, whisk together the flour, salt, thyme, garlic powder, and onion powder. 

Combine the flour mixture and yeast mixture together with a spatula and then use your hands to bring it all together.

Turn the dough out on to a clean surface and knead for a few minutes until it is smooth.

Clean out the bowl, dry, then lightly oil it. Place the dough in to the oiled bowl and place a damp dish towel over it. Let dough rise for 1 hour. 

After 1 hour, punch the dough and release the air. Turn the dough out on to a clean surface and divide the dough in to 6 even pieces. Roll each section of dough in to an oval shape. 

Heat a non-stick pan on medium-high. No oil necessary. Gently place one or two (depending on how much room you have) on the hot pan and cook for 2-3 minutes each side or until golden in places and slightly charred. It will bubble and puff up. Set aside and continue until all the flatbread is cooked. 

Make the Caramelized Onions: Thinly slice the large onion. Heat a pan to medium heat with the olive oil. Add the onions, salt, and sugar to the pan and let cook until they have caramelized about 35-45 minutes. If they start to dry out, add a tablespoon or 2 of water. If they start to burn, turn the heat down. Once the onions are golden and caramelized, turn off heat. Set aside. 

Make the Roasted Potatoes: Preheat oven to 400F. Thinly slice the potatoes like a potato chip. Lay flat on a parchment lined baking tray with no potatoes overlapping. Brush each potato slice with a tiny bit of olive oil and sprinkle with salt. 

Bake time depends on your oven and how thin you sliced them so keep your eye on them. Mine took between 25-30 minutes. You want them to be cooked through and slightly golden and crisp. Once done, take out of the oven and set aside. 

Assembly: Once all the components of the flatbread are done, place your oven on broil. 

Sprinkle the flatbreads with shredded vegan cheese, a layer of roasted potatoes, pieces of the tempeh bacon, caramelized onions, and top with a bit more vegan cheese. 

Place under broil for 5-10 minutes or until the cheese is completely melted and everything has been reheated. Remove from oven and garnish with fresh thyme and green onion if desired.