
Creato con AI
Preheat your oven to 375°F (190°C).
In a large pot, bring water to a boil and add the diced potatoes. Cook for about 5 minutes, then add the cauliflower florets. Continue cooking for another 5 minutes until both are tender. Drain and set aside.
In a saucepan over medium heat, melt the butter and add the chopped onion. Sauté until the onion is translucent.
Stir in the mustard and milk, and bring the mixture to a simmer.
Gradually add the shredded cheese, stirring continuously until the cheese is fully melted and the sauce is smooth.
In a baking dish, combine the cooked potatoes and cauliflower with the cheese sauce, mixing well to ensure everything is coated.
Bake in the preheated oven for 20-25 minutes, or until the top is golden and bubbly.
Remove from the oven and let it cool for a few minutes before serving.