Queso Fundido Skillet with Sweet Potato, Peppers and Melted Cheese Step-by-step instructions

Before you start

Gather all the ingredients and the equipment before you turn on the stove. Peel the sweet potato and dice it into small cubes of about half an inch. Seed the red bell pepper and chop it into pieces, and seed the green chili before chopping it finely. Finely chop the onion, mince the garlic, and chop the cilantro sprigs.

Grate the firm melting cheese into a bowl so it is ready to scatter. Preheat the oven to 400°F (200°C) and set the rack in the middle position. Having every ingredient prepared and within reach keeps the sauce from scorching while you stir the vegetables, and it lets the cheese go on while the skillet is still hot.

Instructions

Build the sauce and coat the vegetables

1. 1Prepare the vegetables
   Peel the sweet potato and dice it into small cubes. Seed the red bell pepper and chop it into pieces. Seed the green chili and chop it finely. Finely chop the onion, mince the garlic, and chop the cilantro sprigs.
   Look for Sweet potato cubes should be uniform, about half an inch, so they cook evenly in the skillet.
   Tip Cut the sweet potato small so it turns tender in the same time the cheese needs to melt.
2. 2Grate the cheese
   Using a box grater, grate the firm melting cheese into a fluffy mound of shreds. Set the shredded cheese aside in a bowl so it is ready to scatter over the top.
   Look for The shreds should be fine and fluffy, not packed together in clumps.
   Tip Grate the cheese from a block rather than buying pre-shredded, so it melts smoothly.

At the end of this phase the onion should be soft and translucent, the garlic should smell fragrant, and the tomato sauce should be bubbling gently around the edges of the skillet. Once you add the sweet potato, red bell pepper, and green chili, every piece should look glossy and coated in the sauce, with no dry patches on the bottom of the pan.

Check that the sweet potato cubes are evenly spread so the cheese will melt over the whole surface. If the sauce looks too thick to coat the vegetables, add a splash of water and stir.

Top with cheese and bake

3. 3Build the sauce base
   Heat the olive oil in the cast iron skillet over medium heat. Add the onion and cook for 3 minutes. Stir in the garlic, then add the tomato sauce, cumin, and a pinch of salt and pepper. Let the sauce simmer gently.
   Look for The sauce should be bubbling slightly and smell fragrant with cumin and garlic.
   Tip Keep the heat at medium so the tomato sauce thickens without scorching on the bottom.
4. 4Coat the vegetables
   Add the diced sweet potato, red bell pepper, and green chili to the skillet. Stir until every piece is coated in the sauce and the vegetables are evenly distributed across the pan.
   Look for Every cube should be glossy and coated, with the sauce bubbling around the edges.
   Tip Spread the vegetables in an even layer so the cheese melts over all of them.
5. 5Top with cheese
   Scatter the shredded cheese generously over the top of the sweet potato mixture, covering the surface edge to edge. Leave a little space near the rim so the cheese can bubble and brown.
   Look for The cheese should cover the vegetables completely with no bare patches showing.
   Tip A generous, even layer of cheese gives the stretchy pull shown in the finished bake.

At the end of this phase the shredded cheese should cover the vegetables from edge to edge, with no bare patches of sauce showing. Once the skillet comes out of the oven, the cheese should be fully melted, golden at the edges, and bubbling across the surface. Pierce a piece of sweet potato with a knife to confirm it slides in easily. The top should look dry enough to hold its shape but still soft and stretchy underneath. If the cheese is pale after 20 minutes, bake for a few more minutes and check again.

Rest, garnish and serve

6. 6Bake until golden
   Preheat the oven to 400°F (200°C) and place the skillet on the middle rack. Bake for 20 to 25 minutes, until the cheese has melted, the top is golden and bubbling, and the sweet potato is tender when pierced with a knife.
   Look for The cheese should be fully melted, golden at the edges, and bubbling across the whole surface.
   Tip Check the sweet potato with a knife; it should slide in easily when the bake is ready.
7. 7Rest and garnish
   Remove the skillet from the oven using oven mitts. Let it rest for 5 minutes so the cheese sets slightly. Scatter the chopped cilantro and extra pieces of red bell pepper over the top, then serve hot with torn pieces of crusty bread.
   Look for The cheese should pull into long strands when a piece of bread is lifted from the surface.
   Tip Serve straight from the skillet so the cheese stays hot and stretchy at the table.

At the end of this phase the cheese should have settled slightly after resting for 5 minutes, and it should pull into long strands when a torn piece of bread is lifted from the surface. The cilantro should be bright green and fresh-smelling, and the red bell pepper pieces should look vivid against the golden top. Before serving, check that the cheese is still hot in the center and that the skillet is set on a heatproof trivet. The dish is ready when the cheese is glossy and the vegetables are tender throughout.

Common mistakes

The most common mistake is grating the cheese too early and leaving it exposed, which can dry out the shreds and make them melt unevenly. Another is cutting the sweet potato in uneven pieces: large cubes stay firm while small ones turn mushy, so keep the dice consistent.

Overcrowding the skillet with too much sauce can make the bake soupy instead of stretchy, so use the amount of tomato sauce given and let it simmer until it thickens. Finally, do not skip the rest after baking. Cutting or tearing into the cheese straight from the oven causes it to run off the bread, while a short rest lets it cling to the bread for the classic pull.

How to tell it’s done

The bake is done when the cheese has fully melted, the top is golden with bubbling patches, and the edges of the cheese look slightly browned. Insert a knife into the sweet potato at the center of the skillet; it should slide through with little resistance, which means the vegetables are tender throughout.

The sauce should be bubbling around the edges and look thick rather than watery. Lift a small piece of cheese with a fork or torn bread: it should stretch into long, smooth strands without breaking apart. This recipe does not contain raw meat or eggs, so the dish is ready once the cheese is melted and bubbling and the sweet potato is tender.