Cut 1 zucchini and 1 summer squash into lengthwise quarters. Trim ends. Place in a pie pan seed-sides up. Drizzle olive oil over them, sprinkle with generous amount of cracked black pepper and garlic powder. Put in oven and turn to 400 degrees convect. When oven hits 400, turn off. Take out the squash after another 5 minutes. Let cool. Cut into small bite-sized chunks.
Make couscous. Use casserole dish with tight fitting cover. Put 1 cup dry couscous in the casserole dish. Add squash chunks. Boil one cup chicken broth and a couple pats of butter. Pour boiling broth over the couscous and squash. Cover and shake a bit to distribute liquid. Let stand 10 minutes. Fluff with a fork.