In a large skillet over medium-high heat, heat olive oil, then add garlic, oregano, and marinara sauce. Sautee for a couple minutes until well blended and aromatic.
Then add the milk and stir to combine for a couple minutes. Add in the sweet potato noodles and season with salt and pepper. Let cook for 5-7 minutes, tossing with tongs to combine with the sauce. Divide the sweet potato noodles into four plates.
Wipe off the sauce from the skillet and heat half of the basting oil, then cook the mushrooms with salt and pepper to taste. Cook for 5-7 minutes until browned and softened. Divide between the four plates
In the same pan, add remaining basting oil and heat until the oil sizzles.
Add the seasoning to the chicken on both sides, then sautee the chicken in the pan for 3-4 minutes per side until juices run clear and chicken is browned on both sides. Divide the chicken into the four plates, and slice if you desire.
Serve with parsley and grated Parmesan cheese, if you desire.