In a mixing bowl, combine Arborio rice, chicken broth, milk, grated Parmesan cheese, frozen peas, chopped onion, minced garlic, and olive oil. Season with salt and pepper to taste.
Pour the mixture into a baking dish and cover with aluminum foil.
Bake in the preheated oven for 45 minutes, or until the rice is tender and the liquid is absorbed.
Remove from the oven, let it sit for a few minutes, then serve hot.
Notes:
This baked risotto casserole is a great way to enjoy a classic dish with less effort.