01 - Bring a large pot of salted water to a boil. Cook penne according to package directions until al dente. Add broccoli florets during the last 2 minutes of cooking. Drain and set aside.
02 - Season steak strips with 1/2 tsp salt and 1/2 tsp pepper. Heat 1 tablespoon olive oil in a large skillet over medium-high heat. Sear steak for 2-3 minutes per side until just cooked through. Transfer to a plate and cover loosely.
03 - Add remaining olive oil to the same skillet. Sauté minced garlic until fragrant, about 1 minute.
04 - Add halved cherry tomatoes to the skillet and cook for 2-3 minutes until just softened.
05 - Reduce heat to medium. Pour in heavy cream, stirring constantly. Simmer gently for 2-3 minutes until slightly thickened.
06 - Stir in Parmesan cheese, red pepper flakes if using, and season with salt and pepper to taste. Let sauce thicken slightly.
07 - Add drained penne and broccoli to the skillet, tossing thoroughly to coat with sauce. Return steak with accumulated juices to the pan. Mix until everything is well combined and heated through.
08 - Remove from heat. Sprinkle with chopped fresh parsley. Serve immediately while hot.