Cheesy stuffed mushrooms with leek mash recipe

Name: Cheesy stuffed mushrooms with leek mash
Yield: Serves 4
Ingredients: 1.3kg Maris Piper potatoes, peeled and cut into large pieces; 2 tbsp olive oil; 3 shallots, finely diced; 2 garlic cloves, crushed; 2 tsp fresh thyme leaves; 2 thin slices sourdough or crusty bread, torn into chunky crumbs; 2 tbsp pine nuts; 150g pack mozzarella, drained and torn; 40g Stilton, crumbled; 50g butter; 2 large leeks, trimmed and thinly sliced; 3 tbsp half-fat crème fraîche; 4 large portobello mushrooms; 400g cherry tomatoes on the vine; 2 tbsp balsamic glaze

Created by The Tesco Recipes team

Gooey mozzarella, punchy Stilton and crunchy pine nuts are stuffed into Portobello mushrooms for a gloriously cheesy meal. Served with a creamy leek mash and roasted tomatoes, this vegetarian dish is definite comfort food.

See method

Serves 4
Takes 45 mins
669 calories / serving

Vegetarian

Shop your ingredients

Tesco Maris Piper Potatoes 1.25Kg
£1.00 Clubcard Price
(£0.80/kg)
Offer valid for delivery from 22/09/2026 until 19/10/2026
1.3kg Maris Piper potatoes, peeled and cut into large pieces
£1.45
£1.16/kg
Tesco Olive Oil 250Ml
2 tbsp olive oil
£3.10
£12.40/litre
Tesco Shallots Onions 400G
3 shallots, finely diced
£1.35
£3.38/kg
Tesco Garlic 4 Pack
Aldi Price Match
2 garlic cloves, crushed
£0.87
£0.22/each
Tesco Fresh Cut Thyme 20G
Aldi Price Match
2 tsp fresh thyme leaves
£0.50
£25.00/kg
Tesco Sourdough Bloomer 400G
2 thin slices sourdough or crusty bread, torn into chunky crumbs
£2.10
£5.25/kg
Tesco Wholefoods Pine Nuts 100G
2 tbsp pine nuts
£3.95
£39.50/kg
Creamfields Mozzarella 210G
Aldi Price Match
150g pack mozzarella, drained and torn
£0.55
£4.40/kg DR.WT
Tesco British Blue Stilton Cheese 220 G
40g Stilton, crumbled
£2.95
£13.41/kg
Tesco British Unsalted Butter 250G
Aldi Price Match
50g butter
£1.85
£7.40/kg
Tesco Sliced Leeks 200g
2 large leeks, trimmed and thinly sliced
£1.00
£5.00/kg
Tesco 50% Less Fat Creme Fraiche 300Ml
Aldi Price Match
3 tbsp half-fat crème fraîche
£0.75
£2.50/litre
Tesco Finest Portobello Vitamin D Mushrooms
4 large portobello mushrooms
£1.50
£10.00/kg
Tesco Organic Cherry Tomatoes On The Vine 200g
400g cherry tomatoes on the vine
£2.10
£10.50/kg
Mazzetti Chef's Reduction Classic Balsamic Glaze 215Ml
£2.80 Save 25% Clubcard Price
(£13.02/litre)
Offer valid for delivery from 28/09/2026 until 27/10/2026
2 tbsp balsamic glaze
£3.80
£17.67/litre

Method

Preheat the oven to gas 6, 200°C, fan 180°C. Boil the potatoes for 15 mins or until very tender. Drain and set aside in the colander to dry a little.
Meanwhile, heat 1 tbsp oil in a frying pan, add the shallots and cook over a low heat for 7-8 mins, adding the garlic and thyme for the final min. Tip into a bowl and mix in the breadcrumbs, pine nuts and half the cheeses; season.
Put the mushrooms and tomatoes on a baking tray, drizzle with the remaining oil and the balsamic glaze. Top the mushrooms with the breadcrumb stuffing and bake for 15 mins. Remove the tomatoes; keep warm. Preheat the grill to high. Divide the remaining cheese between the mushrooms and grill until melted.
Meanwhile, melt the butter in a frying pan and sauté the leeks with a pinch of salt until softened. Add the crème fraîche and the butter from the leeks to the potatoes; mash until smooth. Stir through the leeks. Serve the mash with the mushrooms and tomatoes.