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Cheesy Mushroom and Rice Casserole
with herb roasted carrots

Active: 25 min Total: 1 hr
This one-pan casserole can be prepped and baked in an oven-safe skillet and is topped with bubbly melted cheese. Herb roasted carrots are a simple, colorful side.


Cheesy Mushroom, Broccoli and Rice Casserole:
  • Onions, medium red - 1/2 , diced
  • Garlic - 3 cloves , chopped
  • Mushrooms, cremini - 8 oz , sliced in half
  • Broccoli, frozen florets - 10 oz
  • Oil, cooking - 1 Tbsp
  • Cooked brown rice (leftover from Tuesday) - ~1 1/3 cup
  • Stock, any type - 3/4 cup
  • Sour cream - 1/4 cup
  • Cheese, any shredded white blend - 3 oz + 3 oz
  • Hot sauce (opt) - for serving
Herb Roasted Carrots:
  • Carrots, baby - 12 oz
  • Oil, olive - 1 Tbsp
  • Thyme, dried - 1/2 tsp
  • Lemon juice - 1 tsp


  1. Onions / Garlic - Prep as directed. Store separately. (Can be done up to 5 days ahead)
  2. Mushrooms - Slice mushrooms in half. (Can be done 1 day ahead)
  3. Broccoli - Defrost broccoli in the microwave. Drain off any liquid.

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  1. Heat oven to 350F / 177C. Place one oven rack in the upper third of the oven and another in the lower third.
  2. Brush a sheet pan with some oil or spray with nonstick cooking spray. Toss carrots with olive oil, thyme and some salt. Spread out on sheet pan. Roast on the top rack of the oven, shaking the pan halfway through cooking, until carrots are golden brown and tender, ~45 minutes.
  3. While carrots roast, heat a large skillet over medium-high heat. Add cooking oil and then onions. Saute until onions are soft, 3 to 4 minutes. Add mushrooms and saute until mushrooms are golden brown, ~5 minutes more.
  4. Stir in broccoli and garlic and cook until garlic is fragrant, 2 minutes more.
  5. Remove skillet from the heat and stir in rice, stock, sour cream and first part of cheese. (You can bake the casserole right in the skillet or transfer it to a baking dish if you prefer.) Top with second part of cheese.
  6. Bake casserole on the lower rack of the oven until the cheese is melted and bubbly, 20 minutes.
  7. When carrots are finished roasting, squeeze lemon juice over top.
  8. Serve casserole (top with some more sour cream or some hot sauce if you’d like) with carrots on the side. Enjoy!



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