Boil the eggs for 10 minutes. Quench, peel and let them cool down. For the vinaigrette, peel the shallot and garlic and dice finely. Mix mustard, vinegar, shallot and garlic. Season with salt and pepper and add the oil.
Clean, wash and pluck the salad into bite-sized pieces. Clean, wash and cut the celery and bell peppers into strips. Wash, clean and slice the tomatoes. Drain tuna and olives.
Mix the marinade with the prepared salad ingredients and the anchovy fillets and arrange in a bowl.