Preheat oven (electric cooker: 220 °C/circulating air: 200 °C/gas: see manufacturer). Line a baking tray with baking paper. Cut the ciabatta into cubes and spread on top. Peel garlic, chop finely, mix with 3 tbsp. oil and drizzle over the bread. Roast in a hot oven for 5-10 minutes.
Sort the arugula, wash and spin dry. Wash and chop the tomatoes. Mix vinegar, agave syrup, salt and pepper. Fold in 4 tablespoons of oil. Mix rocket, tomatoes, bread cubes and vinaigrette. Serve and sprinkle feta in flakes on top.