3 potatoes and asparagus with lemony herb Recipes

mayonnaise dressing, mayonnaise, preferably made with canola or olive oil, grated zest and juice of 1 lemon, garlic cloves (or more, to taste), mashed, more, to taste) tarragon or other fresh herb such as dill, salt and pepper, if desired (none needed), vegetables, asparagus , tough end removed, slice diagonally in 1.5 inch pieces (or haricots verts), new potatoes with skin, cleaned but not peeled (optional), red bell peppers , roasted (if desired) and chopped, tomatoes, sliced in half, green onions, chopped

new potatoes (about 15) halved, quartered if large, olive oil, kosher salt and pepper, pork tenderloin, fresh flat leaf parsley chopped, fresh thyme leaves, asparagus (about 1 lb) trimmed, lemon sliced