Preheat your oven to 425°F (220°C).
In a 1 1/2 quart casserole dish, combine the uncooked rice, cream of mushroom soup, and French onion soup.
Mix everything well until fully combined.
Cover the dish with a lid or aluminum foil.
Bake for 30 minutes, then remove the cover and continue baking for another 30 minutes until the rice is tender and has absorbed the liquid.