Salads with peas

1/4 medium red onion , minced 2 teaspoons kosher salt , plus additional for salting water 8 ounces elbow macaroni (about 2 cups) 2 tablespoons milk 2[...]

8 ounces whole grain penne pasta 1/4 medium red onion , cut in strips 1/2 medium fennel bulb , trimmed and cored cut in strips 1 (15 ounce) can chickpeas ,[...]