Preheat large skillet over medium-high and spray with zero-calorie nonstick cooking spray. Add mushrooms and onions.
Sprinkle the vegetables with ¼ tsp of salt and cook for 3 minutes. to form a nice sear on the first side. Flip and cook for an additional 2-3 minutes.
Reduce to medium-low heat. Add 2 cloves of garlic and half of the spinach. Cover the skillet for 30 seconds to wilt the greens. Stir and add the remaining spinach. Cover for another 30 seconds.
Add ½ tsp salt and a squeeze of fresh lemon juice. Stir to combine and set aside.
Preheat the oven to 400°F.
Spray zero-calorie nonstick cooking spray into a large baking dish. Add the tomatoes, red onion, garlic (cut top off and peel), salt, and pepper.
Roast for 30-40 minutes, or until the skins start to lift from the tomatoes.
Cool the mixture and add it to a cooking pot. Squeeze the garlic head to add the garlic. Turn the heat on low.
Add a packet of Stevia, vegetable broth, and basil to the pot. Blend until smooth with an immersion or hand blender. Set aside.
Prepare the Miracle Noodles to package directions. Top with tomato sauce and vegetables.