Heat olive oil in a large skillet over medium-high heat. Add diced onion and cook for 3–4 minutes until softened and fragrant, stirring occasionally. This aromatic base builds the flavor foundation for everything that follows.

Add minced garlic and cook for 30 seconds until fragrant, then crumble in the ground beef. Brown for 5–7 minutes, breaking it into small pieces as it cooks. Drain excess fat if needed, leaving about 2 tablespoons in the pan.

Pour in beef broth, tomato sauce, Worcestershire sauce, and brown sugar, stirring to combine completely. Add dried thyme, oregano, black pepper, and salt—these seasonings create the signature savory profile that makes this saucy crowd beef skillet so memorable.

Bring the mixture to a gentle boil, then add egg noodles directly to the skillet. Stir well to coat, and cook for 6–8 minutes until the noodles reach al dente texture. The noodles will absorb sauce as they cook, creating creamy texture without cream.

Add sliced mushrooms and frozen peas, stirring gently to distribute throughout the beef skillet. Simmer for 2–3 minutes until vegetables are heated through and the sauce reaches your desired consistency. If the dish seems too thick, add ¼ cup water or broth.

Taste and adjust seasonings as needed—you may want extra salt, pepper, or Worcestershire depending on personal preference. Remove from heat and stir in fresh chopped parsley for brightness and color contrast against the deep brown sauce.