Directions
<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Preheat your oven to 200°C (400°F). Toss the sweet potato cubes with 1 tablespoon of olive oil and a pinch of salt. Spread them evenly on a large baking tray, ensuring they're not overcrowded (overcrowding will cause them to steam rather than roast). Bake for 20-25 minutes until the edges are golden and the centers are tender when pierced with a fork. The caramelization from roasting adds depth to the casserole's flavor profile.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>While the sweet potatoes roast, heat the remaining tablespoon of olive oil in a large skillet over medium heat. Add the diced onion and cook for 3-4 minutes until translucent. Add the garlic and diced red pepper, cooking for another 2 minutes until fragrant and slightly softened.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>Add all the spices (cumin, chili powder, smoked paprika, coriander, and cayenne if using) to the skillet and stir continuously for 30 seconds to toast the spices, which intensifies their flavors. Toasting spices releases their aromatic oils, creating a more complex flavor base for your casserole.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>Add the drained black beans, diced tomatoes (with their juice), and corn to the skillet. Stir well to combine and simmer for 5-7 minutes to allow the flavors to meld and the mixture to thicken slightly. Season with salt and pepper to taste.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>Reduce oven temperature to 180°C (350°F). Spread 125ml (about ½ cup) of enchilada sauce in the bottom of your baking dish. This prevents the tortillas from sticking and begins the flavor layering.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Layer 4 corn tortillas over the sauce, tearing them if needed to cover the bottom of the dish with minimal overlap. The corn tortillas not only provide authentic flavor but also hold up better than flour tortillas when baked in sauce, maintaining their texture rather than becoming soggy.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>Spread half of the roasted sweet potatoes over the tortillas, followed by half of the bean mixture. Pour about 125ml of enchilada sauce over this layer and sprinkle with about 80g of cheese.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>Create a second layer with 4 more tortillas, the remaining sweet potatoes, and the remaining bean mixture. Pour another 125ml of sauce over this layer and sprinkle with another 80g of cheese.</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>Top with the final 4 tortillas, pour the remaining enchilada sauce evenly over the top, making sure to cover all the tortillas (this prevents them from drying out during baking). Sprinkle the remaining cheese over the top.</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>Cover the baking dish with aluminum foil, being careful not to let it touch the cheese. The foil traps steam during the initial baking phase, helping the tortillas soften and the flavors to meld together.</li><li class="MethodStepper"><h4 class="step-title">Step 11</h4>Bake covered for 20 minutes, then remove the foil and bake for an additional 10-15 minutes until the cheese is bubbly and beginning to brown at the edges. The uncovered baking time allows moisture to evaporate, preventing a soggy casserole and creating those delicious crispy cheese edges.</li><li class="MethodStepper"><h4 class="step-title">Step 12</h4>Remove from the oven and let the casserole rest for 10 minutes before serving. This resting period is crucial as it allows the layers to set up, making it easier to serve neat portions.</li><li class="MethodStepper"><h4 class="step-title">Step 13</h4>Serve warm with your favorite toppings such as fresh cilantro, sliced avocado, a dollop of sour cream, and lime wedges. The casserole can be refrigerated for up to 4 days or frozen in individual portions for up to 3 months. To reheat, cover with foil and bake at 180°C until heated through, about 20-25 minutes from refrigerated or 40-45 minutes from frozen.</li></ol>