
Made with AI
Cook the penne pasta according to the package instructions until al dente. Drain and set aside.
In a large skillet, heat the olive oil over medium-high heat. Add the diced onion and sauté until translucent, about 3-4 minutes.
Add the minced garlic and red pepper flakes to the skillet and sauté for another 1-2 minutes until fragrant.
Add the beef strips to the skillet and cook until browned on all sides, about 5-7 minutes.
Stir in the tomato sauce and dried oregano. Season with salt and pepper to taste. Let the sauce simmer for about 10 minutes, allowing the flavors to meld.
Add the cooked pasta to the skillet and toss to combine with the sauce and beef.
Serve the pasta hot, garnished with grated Parmesan cheese.