Add extra virgin olive oil, sherry vinegar, Dijon mustard, honey and minced garlic to a small canning jar. Season with 2 pinches of salt and several turns of black pepper. Cap the jar, and shake until ingredients are well-combined. Add additional salt and pepper to taste. The vinaigrette should be a bit over-salty since it will be providing the salt for the other salad ingredients as well.
Put 2 – 4 tablespoons of sherry vinaigrette in the bottom of a large canning jar (26 – 32 oz.). Add ingredients to taste in the following order: sliced fennel, sliced red onions, cooked white beans, sliced Spanish chorizo, baby arugula, and fresh parsley leaves. You’ll want about 1/3 of the jar filled with toppings (like the fennel and chorizo), and 2/3 of the jar filled with greens (arugula and parsley). Cap the jar, and store in the refrigerator for up to 3 days.
When you are ready to eat the salad, shake up the contents in the jar, then transfer to a large plate.