Roasted Sweet Potato and Onion Sandwich with Avocado and Sriracha Mayo

Preheat oven to 400 F. In a large bowl toss sweet potato rounds and onion slices with olive oil, chili powder, nutmeg, salt, and pepper. Put the veggies onto a greased baking sheet in a single layer and put the sheet into the oven. Roast sweet potato and onions for 25-30 minutes, stirring halfway through.

To assemble the sandwiches: Toast the bread using your preferred method. Spread one side of half of the slices of bread with mayo then drizzle as much Sriracha as desired over the mayo. Layer on roasted vegetables, avocado and greens.