Recipe description
June 26, 2026
Oven-baked leek with mustard and chicken
Oven-baked leek with mustard and chicken: fiber and flavor for gut-friendly dining.
Protein Rich
85%
General Gut Health Match
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Takes about 2 minutes.
Why this recipe fits you
- Rich in fiber from leeks and plant-forward ingredients.
- Includes polyphenol-rich mustard for flavor and gut diversity.
- Balanced with lean chicken protein and gentle roasting for an easy weeknight meal.
Gut Health Score
How these gut-support scores are calculated
These scores are estimated from the recipe’s ingredients, nutritional profile, and gut-health relevance. They are intended as practical guidance, not as medical advice.
Fiber support
Looks at fiber-rich ingredients such as legumes, vegetables, fruit, whole grains, nuts, and seeds.
Polyphenol support
Reflects ingredients such as berries, herbs, spices, cocoa, olive oil, colorful vegetables, and other plant foods.
Diversity support
Considers the variety of plant-based ingredients used in the recipe.
Inflammation-balance support
Considers the balance between whole-food ingredients, healthy fats, added sugars, refined carbohydrates, and highly processed components.
Fermentation support
Reflects fermented ingredients or ingredients that may support microbial fermentation, such as prebiotic fibers.
Blood-sugar balance support
Considers fiber, protein, fat quality, added sugars, and the type of carbohydrates in the recipe.
Ingredients
Leek
2
piece
Chicken, breast
2
piece
Seed, mustard
2
teaspoon
Oil, olive
2
tablespoon
Salt
1
teaspoon
Black pepper
1
teaspoon
Instructions
1
Preheat the oven to 400°F (200°C).
2
Trim the roots and dark green parts off the leeks and cut them in half lengthwise.
3
Rinse the leeks thoroughly under cold water to remove any dirt or grit.
4
Place the leeks in a baking dish and drizzle with olive oil, salt, and black pepper.
5
Season the chicken breasts with mustard, salt, and pepper, then place them on top of the leeks.
6
Cover the dish with aluminum foil and bake in the preheated oven for 30 minutes.
7
Remove the foil and bake for an additional 15 minutes, or until the chicken is cooked through and the leeks are tender.
8
Serve hot, optionally with whole grains or extra veggies.
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Nutrition
420 kcal
Calories
30 g
Protein
8 g
Carbohydrates
3 g
Fiber
2 g
Sugar
16 g
Fat
4 g
Saturated fat
0.9 g
Salt
FAQ
What are the main ingredients and their roles in this dish?
Leeks provide prebiotic fiber; chicken supplies lean protein; mustard adds flavor and polyphenols; roasting yields tenderness and easy cleanup.
How do you choose and prepare leeks for baking?
Look for white and pale green stalks; trim the roots, rinse well to remove sand, and cut into thick pieces.
What oven temperature and baking time is needed?
Bake at about 210°C (410°F) for 25–35 minutes, until the chicken reaches 74°C (165°F) internal temperature and the leeks are tender.
Can I use chicken thighs instead of chicken breasts?
Yes, thighs work well; adjust the cooking time to reach 74°C internal temperature.
Is this dish suitable for a gluten-free diet?
Yes, as long as you use gluten-free mustard and ensure any add-ins are gluten-free.
Can I make this dish dairy-free or vegan?
Yes: use olive oil instead of butter for dairy-free; for vegan, replace chicken with firm tofu or mushrooms.
How do I store leftovers or make it ahead?
Cool within 2 hours; refrigerate in a sealed container for 2–3 days; reheat in oven or microwave; you can prep leeks a day ahead.
What sides pair well with this dish?
Whole grains like quinoa, barley, or brown rice; roasted vegetables; a side salad; a squeeze of lemon for brightness.
Can I customize with other vegetables or seasonings?
Yes; add peppers or carrots; swap mustard types; adjust herbs to taste.
Is this dish suitable for a low-FODMAP diet?
Leeks are high in FODMAPs, so this dish is not suitable for most strict low-FODMAP diets unless you substitute leeks with a low-FODMAP vegetable and adjust flavor.
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