Tomato Beef Cheese Lava Rice
A vibrant one-pan meal featuring savory beef rolls and juicy tomatoes surrounding a central mound of rice topped with a molten cheddar cheese blanket.
This dish is a modern fusion of Japanese gyudon flavors and Western comfort food. By simmering thin beef rolls in a tangy tomato base and finishing with a double-cheese melt, it creates a visual and flavorful lava effect that is perfect for a quick, impressive weeknight dinner.
Ingredients
- 200 g thinly sliced beef (brisket or ribeye rolls)
- 2 cups cooked white rice
- 2 medium tomatoes, diced
- 12 purple onion, diced
- 100 ml gyudon beef sauce
- 50 g shredded mozzarella cheese
- 1 slice cheddar cheese
- 1 tbsp cooking oil
- optional shredded seaweed (nori)
- to taste white sesame seeds
Instructions
- 1Oil the pan

Begin by lightly coating a large, flat cast iron pan with cooking oil. Using a spray bottle ensures an even, thin layer across the surface, preventing the ingredients from sticking as they sear.
Tip: Apply the oil while the pan is still cold or warming up to prevent the spray from smoking immediately. - 2Sauté the onions

Add the diced red onions to the oiled pan over medium heat. Stir-fry them continuously with a wooden spatula until they become translucent and fragrant, which builds the flavor base for the dish.
Tip: Keep the onions moving to ensure they soften evenly without browning too quickly or burning. - 3Cook the tomatoes

Incorporate the diced tomatoes into the pan with the sautéed onions. Continue to cook and stir until the tomatoes soften and begin to release their natural juices, creating a savory sauce in the pan.
Tip: Press down slightly on the tomatoes with your spatula to help them break down faster and release more moisture. - 4Assemble rice and beef

Clear a space in the center of the pan and place a round mound of cooked white rice there. Arrange the raw beef rolls in a circle around the rice, resting them directly on top of the tomato and onion mixture.
Tip: Shape the rice in a small bowl first and flip it into the pan to get a perfect dome shape. - 5Season with gyudon sauce

Evenly pour the dark gyudon beef sauce over the raw beef rolls and the surrounding vegetables. The sauce will season the meat and combine with the tomato juices to create a rich, savory broth.
Tip: Focus the pour on the beef rolls to ensure the meat is well-marinated before the steaming process begins. - 6Add shredded cheese

Distribute a generous amount of shredded mozzarella cheese over the beef and tomato sections. Avoid covering the central rice mound, as that will receive a different cheese topping later.
Tip: Use freshly shredded cheese if possible, as it melts more smoothly than pre-shredded varieties that contain anti-caking agents. - 7Add cheddar cheese

Place a single square slice of yellow cheddar cheese directly on top of the central mound of white rice. This cheese will melt down over the rice as the dish simmers, adding a creamy texture and sharp flavor that complements the beef and tomato base.
Tip: If you prefer a milder taste, you can swap the sharp cheddar for a slice of provolone or mozzarella. - 8Cover and simmer

Cover the pan with a conical paper lid or a standard pot lid and set the heat to low. Let the dish simmer for approximately six minutes. This allows the steam to cook the raw beef rolls through while simultaneously melting the shredded and cheddar cheeses into the sauce.
Tip: Keep the heat low during this stage to prevent the bottom of the rice or the tomato sauce from scorching while the beef cooks.