Step 1Preheat oven to 220 °C/ 425 °F (conventional), or 200 °C/ 400 °F (fan assisted). Heat the oil in a large oven safe skillet over medium high heat. Add in the onion, jalapeño, bell pepper, and garlic. Sauté 3-4 minutes until soft. Add in the spices and cook 30 seconds until fragrant.