Preheat your oven to 400°F.
Place the chicken breast on a parchment-lined baking sheet. Drizzle lightly with olive oil and season with rosemary, thyme, garlic powder, salt, and pepper.
Bake the chicken in the preheated oven for 20-25 minutes, or until the internal temperature reaches 165°F.
Meanwhile, cut the spaghetti squash in half and remove the seeds. Drizzle the flesh with a little olive oil, season with salt and pepper, and place face down on a separate baking sheet.
Roast the spaghetti squash in the oven for about 30-35 minutes until tender. Once done, use a fork to scrape out the strands.
Place broccoli florets on a baking sheet, drizzle with olive oil, and season with salt and pepper. Roast in the oven for 15-20 minutes until slightly crispy and tender.
Prepare a small side portion of cottage cheese to serve alongside the chicken.
Toast the sourdough bread slice lightly either in the oven or on a skillet.
Plate the herb-baked chicken with a portion of roasted spaghetti squash and broccoli. Serve with the side cottage cheese and toasted sourdough bread for a balanced, delicious dinner.