Grill or bake chicken breast. Wrap in tinfoil to keep warm and set aside.
In a large nonstick sauté pan, very lightly add the cooking spray and heat over medium-high heat. Add mushrooms and saute until tender, about 3 minutes. Transfer to a plate and reserve.
Reduce the heat to medium. Add 1 tablespoon olive oil. Add the garlic, and cook until soft, 2 to 3 minutes. Add the grated cauliflower and stir thoroughly to make sure it is coated with the olive oil and onions. Cook the rice for an additional 1 to 2 minutes. Deglaze the pan with the white wine, stirring and scraping the pan until the wine has evaporated, about 2 minutes.
Add the asparagus and zucchini, stirring to combine. Turn heat up to medium-high.
Add the broth and almond milk, frequently stirring so the vegetables cook and the liquid begins to evaporate. Cook for about 6 to 8 minutes, until the cauliflower is tender and just a small amount of the liquid is left on the bottom of the pan. Cut up the chicken breasts into chunks or strips and mix into risotto.
Turn off heat and add cheese, ½ teaspoon salt and ¼ teaspoon black pepper. Add cooked mushrooms and lemon zest, stir to combine.
Taste the risotto and add more salt and pepper as needed.
Separate into 4 equal bowls.
Serve and garnish with parsley, basil, on top if desired.