Preheat oven to 400°F; microwave sweet potato on high in wrapper 6-8 min; carefully scoop flesh from skins into a bowl; mash with a fork + salt/pep

Meanwhile, thinly slice onion, heat 1 tbsp oil in skillet over med-high + cook with salt/pep 2-3 min til soft

In batches, heat 4 tortillas in skillet over med-high 30 sec or until warm

Divide sweet potato + onion fillings into tortillas, roll + place seam down on lightly oiled baking dish; drizzle on 4-6 tbsp sauce

Cover with foil + bake 10 min; remove foil, add 2-4 slices cheese + bake 8-10 min more til hot + bubbling

Meanwhile, heat skillet over med-high + warm rice + 1 tbsp water for 2 min, stirring occasionally; serve rice on the side