Keto Creamy Chicken and Vegetable Bake
1 clove garlic, minced 1 head broccoli, chopped 1 head cauliflower, chopped 1 leek, chopped 1 tablespoon garlic and herb seasoning 1 yellow onion, chopped 2 cups sliced fresh mushrooms 3 tablespoons butter, divided 4 skinless, boneless chicken breasts, cubed 8 ounces shortcut bacon, chopped ¼ cup chicken stock ½ cup cream cheese ½ cup grated Cheddar cheese ½ cup grated Parmesan cheese ½ cup heavy cream