Spinach Pepper Chicken in Wild Mushroom Béchamel Sauce
This elegant chicken dish features tender seared chicken breasts nestled in a creamy wild mushroom béchamel sauce with colorful bell peppers and fresh spinach. The secret to the luxurious sauce is freshly grated nutmeg, which adds warmth and depth to the classic French white sauce. Perfect for a special dinner or entertaining, this restaurant-quality meal combines earthy mushrooms with vibrant vegetables in a rich, silky sauce that coats each piece of perfectly seasoned chicken.
Ingredients
- 6 boneless, skinless chicken breasts
- 1 ½ teaspoon salt
- 1 teaspoon black pepper
- ¼ teaspoon white pepper
- 2 teaspoon thyme
- 1 red, yellow or orange pepper, seeded and cut into 1/4 inch strips
- 4 cups fresh spinach, rinsed
- 1 tablespoon extra virgin olive oil
- 5 tablespoon butter
- 2 cups dried wild mushrooms, re-hydratedcremini mushrooms1:1gluten
fresh mushrooms work well too
- 4 tablespoon flour
- 3 cups whole milk
- 2 tablespoon grated onion
- 1 teaspoon grated garlic
- ⅛ teaspoon fresh grated nutmeg
Instructions
- 1
Heat olive oil and 1 tablespoon butter in deep skillet over medium-high heat
- 2
Add peppers and sauté for 5-7 minutes until just soft
- 3
Pat chicken dry and season both sides with 1 teaspoon salt, black pepper, and 1 1/2 teaspoon thyme
- 4
Remove peppers from pan and set aside
- 5
Add chicken to pan and sear one side for 5-7 minutes until golden brown
- 6
Flip chicken and cook 3 minutes for light golden brown color
- 7
Reduce heat to low
- 8
Melt remaining butter in saucepan over medium-high heat
- 9
Add drained mushrooms and thyme, sauté for 5 minutes
- 10
Add onions and garlic, cook 2-3 minutes stirring occasionally
- 11
Sprinkle in flour and stir to combine
- 12
Cook roux for 2 minutes until you smell the flour cooking
- 13
Whisk in milk until no lumps remain
- 14
Add 1/2 teaspoon salt, white pepper, and remaining thyme
- 15
Reduce to low heat
- 16
Remove chicken from pan and pour béchamel sauce into skillet
- 17
Add spinach and peppers, stirring gently
- 18
Place chicken into sauce and cook until internal temperature reaches 165°F
- 19
Adjust seasoning to taste
Tips
Rehydrate dried mushrooms in warm water for 15-20 minutes before draining and using for best texture and flavor.
The key to perfect béchamel is cooking the roux until you smell the flour - this removes the raw flour taste.
Use a meat thermometer to ensure chicken reaches exactly 165°F for food safety without overcooking.
Good to Know
Refrigerate leftovers up to 3 days in airtight container
Can prep vegetables and season chicken up to 4 hours ahead, cover and refrigerate
Serve immediately while sauce is creamy and chicken is hot, over rice or pasta
Common Mistakes
Don't skip cooking the roux to avoid raw flour taste
Keep sauce on low heat to prevent curdling
Don't overcook chicken or it will be dry
Substitutions
FAQ
Can I use fresh mushrooms instead of dried?
Yes, use 1 pound fresh wild mushrooms, sliced and sautéed until golden. Dried mushrooms provide more concentrated flavor but fresh work well too.
What if my béchamel sauce curdles?
Remove from heat immediately and whisk vigorously. If needed, strain the sauce and start over with the roux, gradually adding the strained liquid back in.
How long will leftovers keep?
Store in refrigerator for up to 3 days. Reheat gently on stovetop over low heat, adding a splash of milk if sauce seems too thick.