This Vegan Pasta Salad combines tender pasta, zesty roasted red pepper sauce, crunchy walnuts, and a fresh herby topping. Perfect for picnics, quick dinners, or meal prep!
Preheat oven to 350°F (175°C). Place sliced bread and walnuts on a rimmed sheet pan. Toast for 8–10 minutes, tossing halfway through. Cool when golden.
Cook pasta in a large pot of salted boiling water for 2 minutes longer than al dente. Reserve 1 cup pasta water. Drain and rinse pasta.
Make breadcrumbs: Tear toasted bread and pulse in food processor to coarse texture. Reserve half for topping.
Prepare roasted red pepper sauce: In food processor, blend remaining bread crumbs, walnuts, roasted red peppers, garlic, lemon juice, smoked paprika, red pepper flakes, kosher salt, and black pepper into a thick paste. Stream in olive oil until smooth.
Make herby topping: Mix reserved bread crumbs with lemon zest, parsley, basil, capers, optional red pepper flakes, and flaky salt.
Assemble salad: Toss pasta with red pepper sauce, thinning with pasta water as needed. Fold in arugula and top with herby bread crumb mixture.
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Notes
Store leftovers in an airtight container for up to 5 days. Keep topping separate for maximum crunch. Add a splash of olive oil or lemon juice when serving leftovers.