Vegan Sausage Rolls with Lentils and Walnuts
Green lentils, toasted walnuts, and finely chopped mushrooms combine with fennel seed, thyme, and smoked paprika to form a hearty, savory filling that stands in for traditional pork sausage. The mixture is wrapped in vegan puff pastry and baked until the crust is deeply golden and crisp. From start to finish the recipe takes about an hour and yields enough rolls for a party platter or a week of packed lunches.
Equipment
- Medium saucepan with lid
- Fine mesh strainer
- Large skillet or sauté pan
- Baking sheet
- Parchment paper
- Chef’s knife and cutting board
- Measuring cups and spoons
- Mortar and pestle or spice grinder (optional)
- Food processor (optional)
- Pastry brush
- Rolling pin (optional)
Ingredients
Filling
- 1 cup dry green or brown lentils, rinsed Choose small green (Le Puy–style) for best texture
- 3 cups low-sodium vegetable broth (or water) Broth adds depth; use a clean, not too sweet brand
- 1 leaf bay leaf Optional but adds roundness
- 1 cup walnut halves, lightly chopped Fresh, untoasted; avoid rancid or stale nuts
- 2 tbsp ground flaxseed Golden flax yields a milder flavor
- 5 tbsp water (for flax "egg")
- 2 tbsp extra-virgin olive oil Choose a fruit-forward oil for aroma
- 1 medium yellow onion, finely diced About 1 cup diced; sweet onions work too
- 1 tsp fennel seeds, lightly crushed Crucial for classic sausage character
- 3 cloves garlic, minced Freshly minced for best aroma
- 1 tsp dried thyme Or 2 tsp fresh thyme, finely chopped
- 8 oz cremini (baby bella) mushrooms, finely chopped Chop small to help them disappear into the filling
- 1.5 tsp smoked paprika Spanish pimentón adds a subtle smokiness
- 0.5 tsp freshly ground black pepper
- 1 tbsp tomato paste Cook briefly to caramelize for depth
- 1.5 tbsp low-sodium soy sauce or tamari Tamari for gluten-free
- 1 tbsp white or chickpea miso Adds savory backbone
- 2 tbsp nutritional yeast Cheesy, nutty undertone
- 1 tsp kosher salt, divided Adjust to taste and saltiness of broth
- 2 tbsp fresh flat-leaf parsley, finely chopped Stems removed
- 0.5 cup panko breadcrumbs Use gluten-free panko if needed
Glaze & Assembly
- 2 sheets vegan puff pastry, thawed About 14 oz total; Pepperidge Farm (US) is commonly vegan—check label
- 1 tbsp all-purpose flour, for dusting Light dusting prevents sticking
- 2 tbsp unsweetened plant milk Oat or soy browns well
- 1 tsp maple syrup Helps caramelize the glaze
- 1 tsp Dijon mustard Adds bakery-style sheen and tang
- 1 tsp neutral oil (e.g., grapeseed) Promotes even browning
- 1 tbsp sesame seeds White or a mix for contrast
- 1 tsp nigella seeds (optional) Classic British bakery look and flavor
To Serve
- 0.5 cup grainy mustard or tomato chutney Serve alongside for dipping
Instructions
- Simmer the lentils (18–20 minutes): In a medium saucepan, combine 1 cup lentils, 3 cups broth (or water), and the bay leaf. Bring to a boil over medium-high heat, then reduce to a gentle simmer. Cook uncovered until the lentils are just tender and most liquid is absorbed, 18–20 minutes. Drain any excess, discard the bay leaf, and set aside. Sensory cue: the lentils should be tender with a slight bite, not mushy.
- Toast the walnuts (6–8 minutes): While the lentils simmer, toast the walnuts in a dry skillet over medium heat, stirring, until fragrant and a shade darker, 4–5 minutes. Alternatively, toast on a baking sheet at 350°F (175°C) for 6–8 minutes. Cool, then chop finely for an even, meaty texture.
- Make the flax "egg" (5–10 minutes, hands-off): Stir 2 tbsp ground flaxseed with 5 tbsp water. Let stand until thick and gelled, 5–10 minutes.
- Build the savory base (about 10–12 minutes): Heat 2 tbsp olive oil in a large skillet over medium heat. Add onion and a pinch of the salt; sauté until translucent and lightly golden at the edges, 5–6 minutes. Add crushed fennel seeds, garlic, and thyme; cook 1 minute until very fragrant. Stir in mushrooms with another pinch of salt; cook, stirring occasionally, until they release moisture and it evaporates, 4–5 minutes—look for a slight sizzle and browned bits (fond) on the pan. Sprinkle in smoked paprika and pepper; cook 30 seconds.
- Enrich, combine, and bind (3–4 minutes + 5 minutes cooling): Add tomato paste; cook 1 minute to caramelize. Deglaze with soy sauce; stir in miso with 1 tbsp water to help it melt. Fold in cooked lentils, toasted walnuts, nutritional yeast, parsley, and the remaining salt to taste. Reduce heat to low and cook 1–2 minutes to marry flavors. Off heat, mix in panko and the flax gel until the mixture holds together when pressed. Cool 5 minutes—this helps the pastry stay flaky.
- Preheat and prepare to assemble: Preheat the oven to 400°F (205°C). Line a baking sheet with parchment. Lightly flour your work surface. Note: For convection, bake at 375°F (190°C).
- Fill, roll, and portion (about 10 minutes): Unfold the thawed puff pastry. If needed, gently roll to smooth creases. Cut each sheet into 2 long rectangles (4 strips total). Divide the filling into 4 equal portions and shape each into a neat log along the length of a pastry strip. Brush one long edge with a little plant milk or water, roll up to enclose, and press to seal. Turn seam-side down. For the cleanest cuts, chill 10 minutes (optional). Cut each log into 3 pieces for 12 rolls total. Score 2–3 diagonal slashes on each roll to vent steam. Transfer seam-side down to the lined sheet.
- Glaze and seed: Whisk together plant milk, maple syrup, Dijon, and neutral oil. Brush the tops and sides of the rolls. Sprinkle with sesame and nigella seeds for bakery-style finish.
- Bake (20–22 minutes): Bake at 400°F (205°C) until deeply golden, dramatically puffed, and crisp on the bottom, 20–22 minutes. Sensory cues: you’ll see defined flaky layers and hear a gentle crackle when tapped. Cool 5 minutes on the sheet for the pastry to set, then serve.
- Timing note: With the walnut toasting and sautéing overlapping the lentil simmer, total cooking time is about 50 minutes. Allow roughly 35 minutes of prep, including chopping and assembly.
Notes
Michelle’s Tips
- Amplify the sausage vibe: Add an extra 1/2 tsp crushed fennel and a pinch of allspice or smoked salt.
- Texture control: Pulse the cooled filling 3–4 times in a food processor for a cohesive, sausage-like crumble—avoid a paste.
- Faster onion sweetness: Add a tiny pinch of sugar and a splash of water to deglaze; this speeds browning without burning.
- Gluten-free: Use gluten-free puff pastry and tamari; swap panko for gluten-free breadcrumbs or crushed GF crackers.
- Nut-free: Replace walnuts with toasted sunflower seeds and add 1–2 tbsp extra breadcrumbs for binding.
- Make-ahead: The filling keeps 2 days refrigerated. Assemble rolls and freeze unbaked; bake from frozen at 400°F (205°C) for 25–28 minutes.
- Seal insurance: Brush the pastry seam with plant milk or a thin swipe of Dijon for a tight seal.
Serving Suggestions
- Plating: Arrange on a warm platter or wooden board. Garnish with wisps of microgreens and lemon zest for a fresh contrast.
- Dips & sides: Serve with grainy mustard, tomato chutney, or a quick pickle of red onions. A crisp salad with a sharp vinaigrette balances the richness.
- Drinks: Pair with a dry hard cider, a malty English-style ale, or chilled iced tea infused with thyme and lemon.
- Perfect-done cues: Rolls are ready when the tops are deep golden, the seams set, and the bottoms feel firm and crisp.
Optional Advanced Instructions
- Parallel efficiency: Start sautéing during the last 10 minutes of the lentil simmer to keep total cook time to about 50 minutes.
- Pastry management: Keep pastry cool. If it softens, chill the filled logs 10 minutes before slicing for razor-sharp cuts and maximum lift.
- No mortar & pestle? Lightly crush fennel seeds under a heavy skillet or with the flat of a chef’s knife.
Nutrition
Calories: 850kcalCarbohydrates: 75gProtein: 24gFat: 53gSaturated Fat: 10gPolyunsaturated Fat: 16gMonounsaturated Fat: 24gTrans Fat: 0.003gSodium: 1151mgPotassium: 844mgFiber: 17gSugar: 6gVitamin A: 444IUVitamin C: 6mgCalcium: 131mgIron: 7mg
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