Vegan Balsamic Sweet Potato Grilled Cheese

Name: Vegan Balsamic Sweet Potato Grilled Cheese
Prep time: 10 min
Cook time: 45 min
Total time: 55 min
Cuisine: European, Mediterranean, Italian, American
Ingredients: 1 medium sweet potato; 2 teaspoons coconut oil, melted; 4 slices bread of your choice; 2 tablespoons vegan mayonaise; handful of greens; ½ red onion, sliced; 2 tablespoons balsamic reduction; ¼ cup shredded vegan cheddar