Prepare brown rice pasta according to package instructions.
While the pasta is cooking, spiralize the zucchini. You can purchase a spiralizer on Amazon, purchase pre-spiralized zucchini, or use a vegetable peeler to create long, thin ribbons.
Place zucchini into a strainer, sprinkle with salt, toss, and allow to sit and drain while you cook the vegetables.
Heat 2 tbsp oil over medium heat in a large sauté pan.
Add onion and garlic and cook, stirring frequently, until fragrant and the onions are translucent but not brown.
Add carrot and red pepper, season with salt and pepper and allow to cook for another three minutes.
Add spiralized zucchini, stir until it's coated with oil and allow to cook another five minutes.
Add cooked capellini and stir until ingredients are evenly distributed.