FOR THE VINAIGRETTE:

3 tablespoons lemon juice, or as needed
Finely grated zest of half a lemon
1 teaspoon Dijon mustard
1/2 teaspoon ground fennel seed
4 to 6 anchovy fillets, rinsed and chopped
Salt and pepper
1/2 cup extra virgin olive oil

FOR THE SALAD:

2 cups cooked cannellini beans, drained
Salt and pepper
Pinch red pepper flakes
6 to 8 large, fat asparagus spears, snapped and peeled
6 radishes
1 small fennel bulb, trimmed
1 small sweet spring onion, or a few scallions, finely chopped
Chopped parsley, basil or dill, for garnish.