Quick summery mediterranean couscous salad

This is my combination of about 3 different recipes.

couscous, 1 3/4 US cups (or a little over 4 deciliters)
a tiny bit more vegetable or chicken broth (or use 1 bouillon cube + water)
1 big bunch of parsley

Greek olives (recipes always want Kalamata, which I can't get here; I use green), 1 sm jar or about 1 cup/2½ deciliters
feta cheese, 1 package or about 1 cup/2½ dl
cherry tomatoes, 1 package
red grapes, ½ package
1 red onion
1 large cucumber

Dressing:
4 tablespoons olive oil
4 tablespoons lemon juice
1 tsp ground cumin
1 tsp dried oregano
½ tsp ground black pepper
½ tsp salt

Make the couscous according to package directions but using broth (or bouillon cube dissolved in the water), and make sure it's not dry by adding a bit more liquid if necessary. Fluff well so there are no clumps.

Wash & chop the vegetables: dice the onions finely, slice the cucumbers into bite-sized chunks, halve the tomatoes and grapes. I leave the olives whole. Chop the parsley roughly. Combine them in a big bowl, then add the couscous and stir to combine. Mix the dressing separately, drizzle it over the top, and stir again.