Preheat the oven to 350°F.
In a large oven-proof skillet, heat olive oil over medium-high heat.
Add onion and poblano peppers and sauté for 5–7 minutes, until softened.
Turn heat down slightly and add zucchini, sofrito, garlic, cooked sausage, chili powder, and coriander.
Stir together and sauté for another 5 minutes, so flavors can blend.
Meanwhile, whisk eggs, salt, and pepper in a large mixing bowl until well blended.
Add egg mixture to the skillet and stir so all ingredients are incorporated.
Place skillet in oven and bake for 35–45 minutes, or until eggs are set and the top starts to turn gold. If you do not have an oven-proof skillet, transfer all ingredients to a lightly oiled baking dish and bake for the same amount of time.