Step 1: Preheat your oven to 375°F (190°C).
Step 2: In your oven-safe skillet, heat the olive oil over medium heat. Add the broccoli, bell pepper, and green onions. Sauté for about 5 minutes until tender. Add garlic, salt, and pepper.
Step 3: In a mixing bowl, whisk the eggs together until well combined.
Step 4: Pour the whisked eggs over the sautéed vegetables in the skillet. Sprinkle cheese and chicken on top.
Step 5: Cook on the stove for about 5 minutes until edges start to set.
Step 6: Transfer the skillet to the oven and bake for 15-20 minutes until puffed and golden brown.
Step 7: Let cool for a few minutes, slice into wedges, and serve warm.