Beef Stroganoff

Name: Beef Stroganoff
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: European, Eastern European
Ingredients: 1 pound sirloin steak or ribeye (Choose tender cuts for quick cooking.); 8-12 ounces cremini or white button mushrooms (Mushrooms shrink a lot when cooked.); 1 small onion or shallot, diced (Should melt into the sauce.); 2 cloves garlic, minced (Optional but enhances flavor.); 2 tablespoons butter and/or oil (Butter adds flavor; oil raises smoke point.); 2 tablespoons flour (Thickens and stabilizes the sauce.); 2 cups beef broth (Use low-sodium for better control.); 1 tablespoon Worcestershire sauce (Adds depth and tang.); 1 teaspoon Dijon mustard (For gentle tang without overpowering.); 1 cup sour cream (Use full-fat for stability.); 1 teaspoon paprika (Optional, for extra flavor.); 1 teaspoon thyme (Optional, for added aroma.); to taste none black pepper (For seasoning.); 1 lemon wedge fresh lemon juice (Optional, to brighten flavor.); 8 ounces wide egg noodles (Classic base that holds sauce well.)