1-Getting Started with Prep Work: First, preheat your oven to 400°F (200°C) and grease a 9×13 inch baking dish. This step sets the stage for even cooking and makes cleanup easier. While the oven heats, bring a large pot of salted water to a boil and add the 1 pound of uncooked penne pasta, cooking it for about 10 minutes until it’s al dente. Explore more beef dishes like this one for inspiration on similar techniques.

2- At the same time, heat 1 tablespoon of olive oil in a large skillet over medium-high heat. Add the 1 pound of lean ground beef and 1/2 medium chopped onion, cooking them for about 10 minutes until the beef browns and the onion softens. This builds a strong base for your casserole.

3-Adding Flavors and Mixing It Up: Next, toss in 1 clove of minced garlic and cook for another minute to let that aroma shine. Drain any excess fat from the skillet to keep your dish light and healthy. Stir in 1.5 cups of marinara sauce, then season with salt and pepper to taste it’s your chance to make it just right.

4- Combine the drained pasta with the beef mixture in your prepared baking dish, tossing everything to coat evenly. This step ensures every bite is full of goodness. Spread it out smoothly and top with 1.5 cups of shredded cheddar cheese for that melty finish.

5-Baking and Serving: Bake uncovered for 10 minutes until the cheese melts and bubbles. For an extra touch, broil for 1-2 minutes to brown the top, but keep an eye on it to avoid burning. Let it cool a bit before serving, and you’ll have a warm meal ready to go.