On a rimmed quarter baking sheet, combined frozen cauliflower gnocchi, halved tomatoes, and thinly sliced shallot. Drizzle ingredients with olive oil and season with garlic powder, onion powder, and salt and pepper.
Roast in the oven for about 30 minutes, tossing all of the ingredients with a large spatula 1-2 times to ensure even cooking.
Remove from oven and garnish with fresh parsley and parmesan cheese, serve immediately.