01 - Pat steak cubes dry with paper towels and toss with olive oil, salt, and pepper.
02 - Heat a large skillet over medium-high heat. Add steak cubes in a single layer and sear for 2 to 3 minutes until golden brown, turning to brown all sides. Remove from skillet and set aside.
03 - In the same skillet, add mushrooms and cook for 4 to 5 minutes, stirring occasionally, until moisture evaporates and mushrooms turn golden.
04 - Reduce heat to medium. Add butter, minced garlic, thyme, and chopped parsley to the mushrooms. Stir for 1 minute until fragrant.
05 - Return steak bites and any accumulated juices to the skillet. Toss and cook for 1 to 2 minutes until steak is heated through and coated with garlic butter sauce.
06 - Adjust seasoning as needed. Garnish with additional parsley and serve with lemon wedges if desired.