Harissa Roasted Veg & Lentils with Lemon-Tahini
A punchy sheet-pan dinner built around caramelized harissa-roasted vegetables piled over tender lentils and finished with a creamy, bright lemon-tahini sauce. It’s hearty, vegan, and great for weeknights because the oven does most of the work. Expect sweet-savory heat, crisped edges on the veg, and a tangy, nutty drizzle that ties everything together. Ideal for meal prep: the veg and lentils hold well and reheat beautifully.
Total time: 50 minutes
Yield: Serves 4
Ingredients
- 1 medium sweet potato, peeled (optional) and cut into 1-inch chunks
- 1 red onion, cut into thick wedges
- 1 bell pepper, cut into 1-inch pieces
- 1 small head broccoli or cauliflower, cut into florets (or 2–3 carrots, cut into chunks)
- 3 tbsp olive oil
- 2–3 tbsp harissa paste (start with 2 tbsp if spice-sensitive)
- 1 tsp ground cumin
- 1 tsp smoked paprika (optional)
- 1 tsp kosher salt, plus more to taste
- Freshly ground black pepper
- 1 cup dried green or brown lentils, rinsed (or 2 (15-oz) cans lentils, drained and rinsed)
- 1 bay leaf (optional)
- 1 garlic clove, smashed (optional)
- Kosher salt
- 1/3 cup tahini
- Juice of 1 lemon (about 3 tbsp)
- 1 small garlic clove, finely grated (optional)
- 3–6 tbsp warm water, as needed to thin
- Kosher salt, to taste
- 1 handful parsley or cilantro, chopped
- Toasted pumpkin seeds or sesame seeds
- A splash of vinegar or quick-pickled red onion
Instructions
- Heat the oven to 450°F / 232°C. Set a rimmed sheet pan inside to preheat (this helps browning).
- In a large bowl, toss the sweet potato and red onion with the olive oil, harissa, cumin, smoked paprika (if using), salt, and pepper. Spread on the hot pan in a single layer.
- Roast for 15 minutes, until the bottoms are starting to brown and you can smell the spices toasting.
- Add the broccoli/cauliflower and bell pepper to the pan, toss to coat, and return to the oven.
- Roast 12–18 minutes more, until the vegetables have deep browned edges and the sweet potato is knife-tender. Taste a piece and adjust salt if needed.
- If using dried lentils: add lentils to a pot with plenty of water (about 4 cups), plus bay leaf and smashed garlic if using. Bring to a boil, then reduce to a lively simmer.
- Simmer 20–30 minutes until the lentils are tender but not mushy. Drain well and season with salt.
- If using canned lentils: warm them in a small pot with a splash of water and a pinch of salt until hot.
- In a bowl, stir together tahini, lemon juice, and a pinch of salt. It may thicken/seize—this is normal.
- Whisk in warm water 1 tbsp at a time until the sauce is pourable like heavy cream. Add grated garlic if using. Taste and adjust salt/lemon.
- Spoon lentils into bowls, pile the roasted vegetables on top, and drizzle generously with lemon-tahini.
- Finish with herbs and seeds, and a splash of vinegar or pickled onion if you like extra brightness.
Notes
Spice control: start with 2 tbsp harissa and add more at the end or serve extra on the side. Meal prep: store roasted veg and lentils together 4–5 days refrigerated; reheat until hot and edges sizzle, then add sauce. Sauce keeps 3–4 days; it will thicken—loosen with warm water and a pinch of salt. Optional boost: add 1 can chickpeas to the sheet pan for the last 15 minutes to crisp and add extra protein.