Preheat oven to 450. In a baking dish add the carrots, onion, red pepper, beets, thyme, olive oil and season with salt and pepper. Toss together and roast in the oven for 20-25 minutes.
Bring 4 cups of chicken stock to a boil. In a skillet coated with cooking spray add the couscous and toast over medium-high heat until golden brown. Add to the chicken stock and add butter. Cook according to package directions (about 12 minutes).
In the same skillet that’s been recoated with cooking spray, add the scallops and sprinkle with salt and pepper. Sear on each side until cooked through, about 4 minutes (or longer depending on size).
In a large bowl add the couscous, parmesan cheese, roasted vegetables and toss to combine. Pour onto a serving platter and top with seared scallops and parsley and serve.