In your Stargazer 10.5-inch cast iron skillet, heat a bit of olive oil then add minced garlic, red pepper, and onion - cook until soft. Pour in crushed tomatoes and cook for 10 minutes.
Arrange remaining vegetables in a circular pattern filling the skillet. Drizzle with olive oil and sprinkle with salt and pepper.
Bake covered for 20 minutes then remove foil and bake another 10-15 minutes.