Spinach Rice Bake

Cook the rice blend according to package directions. While it's cooking, get your spinach situation sorted.

Thaw the spinach completely, then squeeze the life out of it between paper towels. You want it bone dry — wet spinach will make this casserole soggy and sad. (Really commit to squeezing. I'm talking wring-it-like-a-dishrag dry.)

Preheat your oven to 350°F and grease a shallow casserole dish.

In a large bowl, mix the cooked rice, dried spinach, cheese, melted butter, diced onion, mustard powder, and salt until everything's evenly distributed.

Spoon the mixture into your prepared casserole dish and spread it out evenly.

Bake uncovered for 35-40 minutes until heated through and the top starts getting a little golden. Let it rest for 5 minutes before serving.