One-Pot Beef Stroganoff with Mushrooms

By AislePrompt Editorial · Published 2026-07-10 · Updated 2026-07-10

Tender strips of beef and mushrooms simmered in a rich sour cream sauce all cooked in one pot for an easy, comforting meal. This Russian-inspired beef recipe, ready in about 40 minutes, pairs olive oil, beef sirloin, thinly sliced, yellow onion, diced for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 550 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

• 2 tbsp olive oil
• 1 lb beef sirloin, thinly sliced
• 1 medium yellow onion, diced
• 3 garlic cloves, minced
• 8 oz cremini mushrooms, sliced
• 2 tbsp all-purpose flour
• 2 cups beef broth
• 1 tbsp Dijon mustard
• 1 cup sour cream
• 8 oz egg noodles, uncooked
• 1 tsp salt
• 1/2 tsp black pepper
• 2 tbsp fresh parsley, chopped

The pan we’d use for this → Best Nonstick Cookware for 2026: Top 5 Skillet Picks + Buying Guide

Instructions

1. Step 1: Heat 2 tbsp olive oil in a large deep skillet over medium-high heat. Add 1 lb thinly sliced beef sirloin and cook for 3-4 minutes until browned but not fully cooked. Remove beef and set aside.
2. Step 2: In the same skillet, add 1 medium diced yellow onion and 3 minced garlic cloves. Sauté for 3 minutes until translucent and fragrant.
3. Step 3: Add 8 oz sliced cremini mushrooms and cook for 5 minutes until they release moisture and start to brown.
4. Step 4: Sprinkle 2 tbsp all-purpose flour over the vegetables and stir continuously for 1 minute to cook out the raw flour taste.
5. Step 5: Slowly pour in 2 cups beef broth while stirring to avoid lumps. Add 1 tbsp Dijon mustard and bring mixture to a simmer.
6. Step 6: Stir in 8 oz uncooked egg noodles, return browned beef to the skillet, and season with 1 tsp salt and 1/2 tsp black pepper. Cover and cook for 10 minutes, stirring occasionally until noodles are tender.
7. Step 7: Remove from heat and gently fold in 1 cup sour cream until sauce is creamy and smooth.
8. Step 8: Garnish with 2 tbsp chopped fresh parsley before serving.