One-Pan Harissa Beef and Roasted Vegetables

By AislePrompt Editorial · Published 2026-05-28 · Updated 2026-05-28

Tender grass-fed beef strips roasted with spicy harissa and a medley of seasonal vegetables for a flavorful, nutrient-packed meal. This Mediterranean-inspired beef recipe (whole30, gluten free), ready in about 35 minutes, pairs grass-fed beef sirloin, thinly sliced, harissa paste, zucchini, sliced into 1/2-inch rounds for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 400 calories and feeds 4, so it slots cleanly into a Whole30 week and pairs well with roasted sweet potato or a simple olive-oil salad. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 1 lb grass-fed beef sirloin, thinly sliced
• 2 tbsp harissa paste
• 2 medium zucchini, sliced into 1/2-inch rounds
• 1 large red bell pepper, cut into 1-inch pieces
• 1 medium red onion, cut into wedges
• 3 tbsp olive oil
• 1 tsp ground cumin
• 1 tsp sea salt
• 1/2 tsp black pepper
• 2 tbsp fresh parsley, chopped

The sheet pan we’d roast this on → Best Sheet Pans in 2026: Top Picks + Buying Guide

Instructions

1. Step 1: Preheat oven to 425°F. In a large mixing bowl, combine 1 lb thinly sliced grass-fed beef sirloin with 2 tbsp harissa paste, 3 tbsp olive oil, 1 tsp ground cumin, 1 tsp sea salt, and 1/2 tsp black pepper. Toss until beef is fully coated.
2. Step 2: Add 2 medium sliced zucchini, 1 large red bell pepper cut into 1-inch pieces, and 1 medium red onion cut into wedges to the bowl. Toss everything together to coat vegetables with harissa mixture.
3. Step 3: Spread the beef and vegetables in a single layer on a large rimmed baking sheet.
4. Step 4: Roast in the preheated oven for 15-18 minutes, stirring halfway through, until beef is cooked through and vegetables are tender and caramelized at the edges.
5. Step 5: Remove from oven and sprinkle with 2 tbsp chopped fresh parsley before serving.