01 - Preheat oven to 375°F (190°C). Position the rack in the center.
02 - Heat olive oil in a large ovenproof skillet over medium heat. Add the asparagus, zucchini, and scallions. Sauté for 3–4 minutes until slightly tender.
03 - Stir in the baby spinach and thawed peas. Cook for 1–2 minutes until the spinach is fully wilted.
04 - In a mixing bowl, whisk together the eggs, milk, salt, pepper, and thyme leaves until well combined and smooth.
05 - Spread the sautéed vegetables evenly across the skillet. Pour the egg mixture over the vegetables. Gently shake the skillet to distribute everything evenly.
06 - Scatter the crumbled goat cheese evenly over the top of the egg mixture.
07 - Cook on the stovetop over medium-low heat for 3–4 minutes without stirring, just until the edges begin to set.
08 - Transfer the skillet to the oven. Bake for 12–15 minutes until the center is fully set and the top is lightly golden.
09 - Remove from the oven and let cool slightly before slicing into wedges. Serve warm or at room temperature.