Make Tortilla Bowls:

1. Preheat oven to 350 degrees. Line a large rimmed baking sheet with foil. Arrange 6 heat-proof ramekins on the prepared baking sheet, face down. Lightly coat the ramekins and baking sheet with cooking spray. Lay tortillas out on work surface. Brush 2 teaspoons oil over the tortillas. Drape tortillas, oil side up over the ramekins and pinch to crease and create inverted bowls. Bake until the shells are lightly golden and crispy, 17 to 20 minutes. Remove from the oven and let cool 5 minutes before transferring to a wire rack to cool completely.

Make Sweet Potato Black Bean Chili:

1. While bowls bake and cool, heat 2 teaspoons oil in a large heavy-bottomed soup pot or Dutch oven over medium-high heat. Add garlic and onion, and cook, stirring often until the onion is starting to soften and brown, 4 to 6 minutes. Add chili powder, cumin, cinnamon and ½ teaspoon salt, and cook, stirring, until fragrant, about 30 seconds. Stir in canned tomatoes, sweet potato, black beans and ½ cup water and bring to a simmer over high heat. Cover, reduce heat to medium-low to maintain a gentle simmer, and cook, stirring occasionally. As chili cooks add up to ½ cup more water for saucier consistency or if mixture thickens too much before the sweetpotato is tender. Continue simmering until the sweetpotato is softened, 18 to 20 minutes.

Assemble Chili Tortilla Bowls

1. Toss cabbage, cilantro, lime juice and pinch salt in a medium bowl. Place burrito bowls on plates. Ladle chili into bowls, about ¾ cup per bowl. Divide cheese among the bowls. Top with chopped fresh tomato, salsa if using and the cabbage slaw.