30 ml olive oil
1 large leek (white part only), chopped
1 teaspoon salt, divided, or as needed
375 ml (1/2-inch) sliced zucchini
1 jalapeno pepper, seeded and diced
375 ml (1/2-inch) pieces asparagus
250 ml baby spinach
375 ml sliced cooked potatoes
12 large eggs
2.5 ml freshly ground black pepper
1 pinch cayenne pepper
115 g crumbled goat-milk feta cheese, divided
Step 1
Start by preheating the oven to 175 degrees C (350 degrees F).
Step 2
In a heavy 25-cm skillet, heat olive oil over medium heat. Cook leek with a pinch of salt, stirring occasionally, until softened and translucent, about 5 to 6 minutes. Add zucchini and jalapeño; season with a pinch of salt. Cook until zucchini starts to become tender and pale green, about 5 minutes. Add asparagus and cook until bright green, about 1 minute. Add spinach and another pinch of salt; cook until wilted, about 1 minute. Stir in cooked potatoes and heat through, about 5 minutes.
Step 3
In a bowl, crack eggs and add salt, black pepper, and cayenne. Whisk until well combined, at least 30 seconds. Pour eggs over the vegetables in the skillet over medium heat. Add 85 g feta cheese; stir lightly until evenly distributed. Top with the remaining 30 g feta cheese. Remove from heat.
Step 4
Bake in the preheated oven until eggs are set, 12 to 15 minutes. When nearly set, turn on the oven broiler. Broil frittata until the top browns, 1 to 2 minutes. Cool slightly; serve warm.