Ingredients:
- 4 English muffin halves (approx. 120g)
- 2 tbsp unsalted butter, softened
- 1/2 cup bell pepper, finely diced
- 1/4 cup red onion, finely diced
- 1/2 cup baby spinach, chopped
- 1/4 cup mushrooms, finely chopped
- 1 tbsp olive oil
- 1/4 tsp salt
- 1/8 tsp black pepper
- 1 cup shredded mozzarella or sharp cheddar
- 1/4 cup grated Parmesan cheese
Instructions:
- Heat 1 tbsp olive oil in a skillet over medium heat. Add 1/4 cup finely diced red onion and 1/2 cup finely diced bell pepper, cooking for 3 minutes until softened.
- Stir in 1/4 cup finely chopped mushrooms and 1/2 cup chopped baby spinach, sautéing for another 2 minutes until the spinach has wilted and the moisture has evaporated. Season with 1/4 tsp salt and 1/8 tsp black pepper.
- Preheat the oven broiler to high and move the oven rack to the top position, approximately 6 inches from the heat source.
- Butter the cut side of each of the 4 English muffin halves using 2 tbsp softened unsalted butter. Place them on a parchment-lined baking sheet and broil for 1–2 minutes until the edges are just beginning to turn golden.
- Flip the muffins over. Sprinkle a small pinch of the 1 cup shredded mozzarella on each half to create a base layer. Spoon the sautéed vegetable mixture evenly over the cheese.
- Top the vegetables with the remaining shredded mozzarella and 1/4 cup grated Parmesan cheese.
- Return the tray to the oven and broil for 3–5 minutes, watching closely. Remove from the oven the moment the cheese is bubbling and has developed deep brown spots.