Boil your macaroni according to package directions until al dente/firm. Drain, rinse in cold water, and cool until at least room temperature - refrigerated is fine too!
While your macaroni is boiling, dice your hard boiled eggs and chop your veggies finely. In a pinch, I have actually popped the veggies into the food processor! You won't get as much crunch that way, but you will still get all the flavor in just a few seconds. I vary the amount I add based on the size of the vegetables. If you have a particularly large carrot, one will be plenty. If your onions are quite small, use 3 instead of 2. You will find an amount that works well for you!
Blend together your mustard, mayonnaise, and honey. Whisk in milk, and add salt and pepper (which can be adjusted to your tastes).
Mix veggies, relish, eggs, and macaroni together and then pour the sauce mixture over top. Stir well and refrigerate until ready to serve!
Recipe by Happy Hour Projects at https://happyhourprojects.com/summer-macaroni-salad/