Panzanella's Shrimp and Crab Salad


1/2 lb lump Crab, carefully picked - no shells
1/2 lb peeled shrimp, boiled lightly in salt water, cut lengthwise
1/2 small red onion, diced
1 stalk of celery, diced
Juice from 1 lemon or to taste
1/8-cup mayonnaise or to taste
Chopped fresh Italian parsley
Chopped fresh oregano or thyme, but not both

Mix all ingredients together and serve with Crostini and Tapenade. Serves 3-4