Grilled Andouille with Caramelized Onions over Mashed Cauliflower and Collards

Andouille Sausage (Pork, Water, Salt, Spices, Sugar, Sodium Phosphate, Sodium Erythorbate, Sodium Nitrite, Hog Casing) Cauliflower, Onion, Garlic, Salt, Pepper, Grapeseed Oil, Coconut Milk (Water, Guar Gum, Polysorbate 60, Carboxyl Methyl Cellulose, Sodium Metabisulphite), Collard Greens