Creamy Mushroom Steak

Toss carrots and zucchini on a baking sheet with a large drizzle of oil, half the garlic powder, half the thyme, salt, and pepper (for 4 servings, spread carrots out across entire sheet; use a second sheet for zucchini). (You’ll use the remaining garlic powder and thyme in Step 5.)

Roast on top rack, tossing halfway through, until browned and tender, 20-25 minutes. (For 4, roast on top and middle racks, swapping rack positions halfway through.)

While veggies roast, pat chicken* dry with paper towels and season all over with salt and pepper.

Heat a drizzle of oil in a large pan over medium heat. Add chicken; cook until browned and cooked through, 6-8 minutes per side. TIP: Lower heat and cover pan if chicken begins to brown too quickly.

Turn off heat; transfer to a cutting board. Wipe out pan.

Swap in steak* for chicken. Cook to desired doneness, 5-7 minutes per side.

Meanwhile, trim and thinly slice mushrooms (skip if your mushrooms are pre-sliced!).

In a small bowl, whisk together mustard, sour cream, stock concentrate, ¼ cup water, and 1 tsp vinegar (⅓ cup water and 2 tsp vinegar for 4 servings). (Be sure to measure the vinegar; we sent more.) Set aside.

Heat a drizzle of oil in pan used for chicken over medium-high heat. Add mushrooms and remaining thyme; season with salt and pepper. Cook, stirring occasionally, until softened, 2-4 minutes. Add remaining garlic powder and stir to coat.

Add mustard mixture and 2 TBSP butter (4 TBSP for 4 servings). Cook, stirring constantly, until butter has melted and sauce is thoroughly combined.

Bring to a simmer and cook, stirring constantly, until slightly thickened, 1-2 minutes more. TIP: If sauce is too thick, add a splash or two of water and bring to a boil; stir until smooth and slightly thickened.

Turn off heat and season with salt and pepper.

Use pan used for steak here.