Cut the courgette, aubergine, bell pepper, tomatoes, and onion into 2 cm cubes.
Mix the vegetables in a bowl with the garlic, Provençal herbs, ½ teaspoon salt and pepper to taste. Also spoon in the olive oil.
Put the bowl in the basket and slide the basket into the AirFryer. Set the timer to 15 minutes and cook the ratatouille. Stir the vegetables once when cooking.
Serve the ratatouille with fried meat such as entrecôte, or a cutlet.