Vegan Cheesy Croissant Casserole

Name: Vegan Cheesy Croissant Casserole
Ingredients: 10 small croissants (10 ounces, cut in halves); 1 tbsp extra virgin olive oil; 2 large cloves garlic; 7 oz vegan Italian sausage (two links); 1 large bell pepper (finely diced); 1 large zucchini (finely diced); 2 tbsp oregano (thyme, or a mixture of both, works too); 4 oz vegan mozzarella cheese; 1 cup raw cashews (or 4 cups of any nondairy milk); 1 tsp dry onion flakes; 1/2 tsp garlic powder; 2 tbsp nutritional yeast; Salt and ground black pepper to taste; 1/2 tsp nutmeg