Preheat the oven to 400ºF. Line a large baking sheet with parchment paper.
Clean and pat dry the chicken, cut into bite-size pieces. Season with salt, pepper, and chili. Lightly beat the eggs in a bowl, add olive oil and mix. Dip each chicken cube into the egg mixture, then use a tong to grab each chicken nugget and toss into the crushed corn flakes. Transfer to the baking sheet. Bake in the oven for 15-20 minutes until cooked through. Remove from the oven and set aside for 15 minutes to cool.
Prepare some decorative skewers. When the chicken nuggets have cooled, stick the ingredients on the skewers in the following order: first a cube of cheese, then a piece of chicken, and finally a tomato. Garnish with fresh oregano and arrange on a serving plate.