Recipe description
September 25, 2026
Prebiotic Garlic Mushroom Barley Tray Bake
A comforting, fiber-rich tray bake with prebiotic garlic and savory mushrooms.
Prebiotic Rich
High Fiber
High Omega-3
87%
General Gut Health Match
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Overall
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Takes about 2 minutes.
Why this recipe fits you
- Rich in fiber from barley, mushrooms, onion, and garlic.
- Uses minimally processed ingredients, olive oil, and fresh herbs.
- Provides a practical, satisfying whole-grain dish with no added sugar.
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
Barley
150
gram
Mushroom
250
gram
Garlic
3
piece
Onion
1
piece
Oil, olive
2
tablespoon
Vegetable broth
350
ml
Thyme
1
teaspoon
Salt
1
teaspoon
Black pepper
1
teaspoon
Instructions
1
Preheat the oven to 200°C (180°C fan). Rinse the barley under cold water.
2
Thinly slice the garlic and onion, and quarter the mushrooms.
3
Spread the barley, mushrooms, onion, and garlic on a large tray bake dish. Drizzle with olive oil and toss to coat.
4
Pour in the vegetable broth, then season with thyme, salt, and black pepper. Stir once to combine.
5
Cover the tray with foil and bake for 30 minutes.
6
Remove the foil, stir the mixture, and bake for another 15–20 minutes until the barley is tender and the liquid is absorbed.
7
Let it stand for a few minutes, then serve hot as a comforting everyday dish.
More Recipes For Your Gut
Nutrition
440 kcal
Calories
13 g
Protein
68 g
Carbohydrates
14 g
Fiber
7 g
Sugar
16 g
Fat
2 g
Saturated fat
3.0 g
Salt
FAQ
How many people does this garlic mushroom barley tray bake serve?
The quantities make 2 servings.
Why is this recipe described as prebiotic?
Garlic and barley contain dietary fibers that can be fermented by gut microbes. Individual effects vary, and the dish is not intended to treat any health condition.
Is this barley tray bake gluten-free?
No. Barley contains gluten, so this dish is not suitable for people with coeliac disease or those following a strict gluten-free diet.
What type of barley should I use?
Use the type specified on the packet, preferably pearl barley for the stated cooking time. Hulled barley may need more liquid and longer cooking.
What temperature should I use for the tray bake?
Bake at 200°C conventional or 180°C fan. Cover with foil for the first 30 minutes, then uncover and bake for 15–20 minutes.
How can I tell when the barley is cooked?
It should be tender but slightly chewy, with most of the broth absorbed. If it is still firm, add a little hot water or broth and continue baking.
Can I use different mushrooms or vegetables?
Yes. Similar mushrooms can be substituted, and extra vegetables can be added if the tray is not overcrowded. Moist vegetables may require a little longer cooking.
Is this recipe vegan?
Yes, provided the vegetable broth is vegan and contains no animal-derived ingredients.
How should I store and reheat leftovers?
Cool leftovers promptly, refrigerate them in a covered container, and use within 2–3 days. Reheat thoroughly, adding a splash of water or broth if needed.
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