One-Pot Creamy Beef Stroganoff with Mushrooms

By AislePrompt Editorial · Published 2026-05-14 · Updated 2026-05-14

A comforting one-pot beef stroganoff combining tender strips of beef and mushrooms in a creamy sauce served over egg noodles. This American-inspired beef recipe, ready in about 40 minutes, pairs egg noodles, sirloin steak, thinly sliced, cremini mushrooms, sliced for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 580 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

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

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Instructions

1. Step 1: Heat 2 tbsp olive oil in a large deep skillet over medium-high heat. Add 1 lb thinly sliced sirloin steak and cook for 2-3 minutes until browned but not fully cooked through. Remove steak and set aside.
2. Step 2: In the same skillet, add 1 medium finely chopped yellow onion and 3 minced garlic cloves. Sauté for 3 minutes until fragrant and translucent.
3. Step 3: Add 8 oz sliced cremini mushrooms and cook for 5 minutes until tender and browned.
4. Step 4: Sprinkle 2 tbsp all-purpose flour over the mushrooms and onions, stirring constantly for 1 minute to cook out the raw flour taste.
5. Step 5: Gradually pour in 2 cups beef broth while stirring to create a smooth sauce. Bring to a simmer.
6. Step 6: Add the browned steak back to the skillet along with 12 oz egg noodles, 1 tsp salt, and 1/2 tsp black pepper. Cover and cook for 10-12 minutes until noodles are tender.
7. Step 7: Remove from heat and stir in 1 cup sour cream and 1 tbsp Dijon mustard until sauce is creamy and well combined.
8. Step 8: Garnish with 2 tbsp chopped fresh parsley before serving warm.