Stir-Fried Beef with Bell Peppers and Cauliflower Rice

By Lauren Mitchell, Test Kitchen Director · Reviewed by AislePrompt Editorial · Published 2026-07-07 · Updated 2026-07-07

Tender strips of beef quickly stir-fried with colorful bell peppers and served over fragrant cauliflower rice for a low-carb Whole30 meal. This asian fusion-inspired whole30 (whole30, low carb) ready in about 30 minutes pairs cauliflower rice, minced garlic cloves, fresh, grated ginger for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. 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, thinly sliced against the grain flank steak
• 1 large, sliced into thin strips red bell pepper
• 1 large, sliced into thin strips yellow bell pepper
• 4 cups cauliflower rice
• 4 cloves, minced garlic cloves
• 1 tbsp fresh, grated ginger
• 3 tbsp coconut aminos
• 3 tbsp olive oil
• 1 tsp sesame oil
• 1 tsp sea salt
• 1/2 tsp black pepper
• 2 stalks, sliced thin green onions

Instructions

1. Step 1: Heat 1 tbsp olive oil and 1 tsp sesame oil in a large skillet over high heat. Add 1 lb thinly sliced flank steak seasoned with 1/2 tsp sea salt and 1/4 tsp black pepper. Stir-fry for 3-4 minutes until browned but still tender. Remove beef from skillet and set aside.
2. Step 2: In the same skillet, add remaining 2 tbsp olive oil. Sauté 4 minced garlic cloves and 1 tbsp grated fresh ginger over medium-high heat for 30 seconds until fragrant.
3. Step 3: Add 1 large sliced red bell pepper and 1 large sliced yellow bell pepper to the skillet. Stir-fry for 4-5 minutes until peppers are tender-crisp.
4. Step 4: Add 4 cups cauliflower rice and 3 tbsp coconut aminos to the skillet. Stir well and cook for 3-4 minutes until cauliflower is heated through and slightly softened.
5. Step 5: Return cooked beef to skillet and toss everything together with 2 sliced green onions. Adjust seasoning with remaining sea salt and black pepper if needed, then serve immediately.