Adjust oven rack to upper-middle position and heat oven to 390°F (200°C).
Use an 8-inch (20cm) ovenproof baking dish (no matter the shape), or a traditional earthenware (ceramic) pot, or parchment paper (about 18 x 18 inches/45cm x 45).
Slice 2-3 rounds from tomato and set aside. Dice the remaining tomato into ½ inch (about 1 cm) pieces and place in the baking dish/parchment paper. If you use cherry tomatoes cut them in half.
Add some chili pepper slices (reserve the rest for topping) to chopped tomatoes along with bell pepper, 2 tablespoons olive oil, and the oregano. Stir gently to combine and smooth into an even layer.
Nestle the feta block on top of vegetables. Drizzle with the remaining 1 tablespoon of olive oil. Top feta cheese with the tomato slices.
Add the grated smoked cheese and the remaining chili peppers in a single layer. Sprinkle with oregano and red pepper flakes.
Cover the baking dish with parchment paper (if there isn’t a lid) or close tightly the parcel. Bake until diced vegetables have softened, about 25 minutes.
Remove the lid/parchment paper or open the parcel and return the dish or the parcel to the oven. Turn on the broiler and broil for about 5 minutes. Remove the dish/parcel from the oven and serve sizzling hot.