Green Bean Wild Rice Casserole is a deliciously cozy main or side dish on cold winter nights. Made with a wild rice blend, fresh green beans, and homemade cream of mushroom soup. It's savory, comforting, and hearty.
Preheat oven to 375°F. Heat a large skillet over medium-high heat with olive oil. Add onion slices and celery with a pinch of salt; cook for 4-6 minutes until starting to turn soft and translucent.
Add garlic, thyme, white pepper, and another pinch of salt (additional black pepper as desired). Stir in green beans and uncooked wild rice blend. Remove the mixture from the heat and stir in vegetable broth and cream of mushroom soup until combined.
Transfer the mixture to a 9x13 baking dish. Bake for 45-55 minutes, until the casserole is bubbling, with most liquid absorbed and the rice is tender. Optional: stir once during the cooking process.
Let sit for about 10 minutes before serving to allow it to set up. Garnish with fresh parsley and/or crispy onion pieces.
Notes
To bake in an 8x8 or 9x9 pan: increase the cooking time to 65-80 minutes until the rice is tender.
To use 100% wild rice (as opposed to the blend): separately pre-cook the wild rice to al dente according to the package directions. Then, combine with the other ingredients and bake the casserole for 35-45 minutes.
If using Homemade Cream of Mushroom Soup that's been previously frozen, place it in a small saucepan over low-medium heat and stir frequently until warm.
Depending on the cream of mushroom soup used, this recipe may be gluten-free.