Potato Salad without mustard crumbs

1 lb potato 2 tablespoons olive oil 1 teaspoon harissa (Tunisian) 1/2 teaspoon salt 1 teaspoon cumin 1 lemon , juice of fresh cilantro or parsley , to taste 1[...]

add to shopping list 3/4 cup olive oil 1/4 cup fresh lemon juice 1 1/2 teaspoons grated lemon peel 1 green bell pepper, diced 1 cup chopped onion 1/4 cup[...]

add to shopping list 2 medium poblano chilies* 1 yellow bell pepper 1 1/2 cups fresh or frozen corn kernels 2 cups diced seeded tomatoes 3 green onions,[...]

3 lbs red potatoes, skins on, washed and cut into medium-sized chunks 1/2 small red onion , finely chopped 1/3 cup seasoned original flavor rice vinegar 3[...]