1) Drain oil from tuna into a mixing bowl 2) Add red onions, lemon juice/zest, Herbes de Provence, and parsley. 3) Let wet mixture rest for several minutes to let the flavors combine and to take the bite out of the onions. 4) Add the tuna back to mix as well as the drained beans. 5) Use a fork to mix together everything. The fork sometimes help to break up the tuna chunks. 6) Let rest for a couple of minutes and then add salt and pepper to taste. 7) If salad is to dry add a little olive oil or lemon juice to increase the acidity. 8) Chill in fridge before serving. Will keep for a couple of days when well sealed.