Heat 1 tablespoon butter in a large skillet over medium heat. Add the orzo and cook for 3 to 4 minutes, stirring frequently until lightly golden.
Pour in the chicken broth. Bring to a boil. Reduce heat to low, cover, and cook for 12 to 15 minutes until tender. Remove from heat and keep covered.
In another skillet, melt the remaining tablespoon of butter. Add mushrooms in a single layer. Cook undisturbed for 2 to 3 minutes. Season with a pinch of salt. Add onions and continue cooking for 5 to 6 minutes until golden.
Add garlic and cook for 30 seconds. Reduce heat to medium-low.
Stir in: Heavy cream, parmesan cheese, remaining salt, black pepper, red pepper flakes. Simmer gently for 2 to 3 minutes until creamy. Stir in lemon juice.
Pour the mushroom cream sauce into the cooked orzo. Mix until creamy. Cover and keep warm.
Pat steak dry with paper towels. Season with salt and pepper.mHeat vegetable oil in a skillet over medium-high heat. Add steak in a single layer. Cook 2 minutes without moving. Flip and cook another 2 to 3 minutes. Reduce heat to medium-low. Add butter and spoon the melted butter over the steak for 30 seconds.
Spoon creamy mushroom orzo into a serving bowl. Top generously with steak bites. Sprinkle with fresh parsley.nServe immediately.
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Recipe Tips
Pat the steak completely dry before seasoning and cooking. Removing excess moisture helps create a beautiful crust on every steak bite instead of steaming the meat.