Low-Heat Slow Simmered Beef Stroganoff

By AislePrompt Editorial · Published 2026-06-25 · Updated 2026-06-25

Tender strips of beef gently simmered on low heat with mushrooms and onions in a creamy sauce, served over egg noodles. This Russian-inspired beef recipe, ready in about 40 minutes, pairs sirloin steak, thinly sliced, button mushrooms, sliced, yellow onion, finely chopped 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

• 1 lb sirloin steak, thinly sliced
• 8 oz button mushrooms, sliced
• 1 medium yellow onion, finely chopped
• 3 tbsp butter
• 2 tbsp all-purpose flour
• 2 cups beef broth
• 1 cup sour cream
• 1 tbsp Dijon mustard
• 12 oz egg noodles
• 1 tsp salt
• 1/2 tsp black pepper
• 2 tbsp fresh parsley, chopped

Nonstick skillets worth buying → Best Nonstick Cookware for 2026: Top 5 Skillet Picks + Buying Guide

Instructions

1. Step 1: Bring a large pot of salted water to a boil. Add 12 oz egg noodles and cook for 7-8 minutes until al dente. Drain and set aside.
2. Step 2: In a large skillet over medium heat, melt 3 tbsp butter. Add 1 medium finely chopped yellow onion and 8 oz sliced button mushrooms. Sauté for 6-7 minutes until softened and fragrant.
3. Step 3: Add 1 lb thinly sliced sirloin steak to the skillet and cook for 2-3 minutes until just browned but not fully cooked through.
4. Step 4: Sprinkle 2 tbsp all-purpose flour over the meat and vegetables, stirring constantly for 1 minute to cook the flour.
5. Step 5: Slowly pour in 2 cups beef broth while stirring to avoid lumps. Reduce heat to low and simmer gently for 10 minutes until the sauce thickens and the beef is tender.
6. Step 6: Remove skillet from heat and stir in 1 cup sour cream and 1 tbsp Dijon mustard until smooth. Season with 1 tsp salt and 1/2 tsp black pepper.
7. Step 7: Serve the beef stroganoff over the cooked egg noodles and garnish with 2 tbsp chopped fresh parsley.