Toast slices of bread in a toaster. Clean and peel the carrots, cut them in half lengthwise and cut them diagonally into thin slices. Wash the cherry tomatoes. Peel onions and cut into rings. Break bread slices and spread on a deep plate.
Heat 2 tablespoons of oil in a large frying pan. Fry the carrots for about 4 minutes. Add tomatoes and onions. Fry for about 4 minutes more. Season with salt and pepper. Drain capers and olives and mix in.
Deglaze with vinegar and spread immediately over the bread. Drizzle the rest of the oil over the bread and mix well. Crumble the feta and sprinkle over the salad.