Pasta in pan is a simple one-pan meal in which dry pasta cooks directly in a savory tomato sauce instead of in a separate pot. The pasta releases starch as it simmers, helping the sauce turn silky while saving time and washing up. This reliable version serves four and is ready in about 30 minutes.
Ingredients
- 2 tablespoons olive oil
- 1 medium yellow onion, finely chopped (about 1 cup)
- 3 garlic cloves, minced
- 1 teaspoon dried oregano
- 1/4 teaspoon red pepper flakes, or to taste
- 1 can (14.5 ounces) diced tomatoes, with their juices
- 4 cups low-sodium vegetable or chicken broth, plus up to 1/2 cup more if needed
- 12 ounces dried short pasta, such as penne, fusilli, or rigatoni
- 1/2 teaspoon fine salt, plus more to taste (use less if your broth is salty)
- 1/4 teaspoon freshly ground black pepper
- 1/2 cup finely grated Parmesan, plus extra for serving
- 2 cups baby spinach, loosely packed (about 2 ounces)
- 1 tablespoon unsalted butter, optional
- 2 tablespoons chopped fresh basil or parsley, for serving
Instructions
- Choose the pan. Use a wide, deep skillet or sauté pan with a lid, ideally 12 inches across and at least 2 inches deep. A broad pan gives the pasta room to cook evenly. If your pan is smaller, stir more often and expect to add a little extra broth.
- Soften the aromatics. Heat the olive oil over medium heat. Add the onion and cook for 4 to 5 minutes, stirring occasionally, until softened and translucent but not browned. Stir in the garlic, oregano, and red pepper flakes and cook for about 30 seconds, just until fragrant.
- Build the cooking liquid. Add the diced tomatoes and their juices, 4 cups broth, salt, and black pepper. Stir, then bring the mixture to a boil over medium-high heat. Taste the liquid before adding extra salt; broth and Parmesan can both be salty.
- Add the dry pasta. Stir in the pasta, making sure the pieces are mostly submerged. Reduce the heat to maintain a steady, gentle simmer, then cover the pan. Cook for 10 minutes, stirring thoroughly every 2 to 3 minutes so pasta does not stick to the bottom or clump together. Keep the lid slightly ajar if the liquid threatens to boil over.
- Check and adjust. After 10 minutes, uncover and test a piece. Continue simmering and stirring until the pasta is al dente, usually another 1 to 4 minutes, depending on its shape and brand. If the pan looks dry while the center of the pasta is still firm, add broth 1/4 cup at a time. If there is more liquid than you want once the pasta is tender, simmer uncovered for a minute or two. Use the package time as a guide, not a guarantee; one-pan pasta can take longer than pasta boiled in abundant water.
- Finish the sauce. Turn off the heat. Stir in the spinach until wilted, about 1 minute, then add the Parmesan and optional butter. Stir until the cheese melts and the sauce looks glossy. Let the pasta stand for 2 minutes; it will thicken as it rests. Taste and adjust salt, pepper, or red pepper flakes. If it becomes too thick, loosen it with a splash of warm broth or water.
- Serve. Divide among warm bowls and top with basil or parsley and extra Parmesan. Serve promptly while the sauce is creamy.
Tips
- Stir more often than you would boiled pasta. Pasta sits directly on the pan, where starch can settle and scorch. Use a wooden spoon to scrape across the base each time you stir, especially during the first few minutes.
- Keep the simmer gentle. A vigorous boil can make the liquid evaporate before the pasta is done and may cook the edges unevenly. Lower the heat if the sauce is bubbling hard, and add broth gradually when needed.
- Match the pasta shape to the method. Short, sturdy shapes such as penne, fusilli, and rigatoni are easy to stir and hold the sauce well. Very large or unusually thick shapes may need extra liquid and cooking time. Avoid swapping in fresh pasta without changing the method; it cooks much faster and needs less liquid.
- Season in stages. Start with modest salt, then taste after the Parmesan is added. For a dairy-free version, omit the cheese and butter and finish with a drizzle of olive oil; add a little more salt or nutritional yeast if desired.
Serving Suggestions
Serve this pasta as a complete weeknight dinner, or pair it with a crisp green salad dressed with lemon vinaigrette to balance the rich, starchy sauce. Garlic bread or toasted sourdough is useful for scooping up any sauce left in the bowl. For a heartier table, add roasted broccoli, green beans, or a simple platter of sliced vegetables. A final scattering of herbs and Parmesan adds freshness and savory flavor; offer red pepper flakes at the table for anyone who wants more heat.
Variations
For a more filling dish, brown 8 ounces of Italian sausage in the pan before cooking the onion, breaking it into small pieces. Drain excess fat if necessary, then continue with the recipe. You can also add 8 ounces of sliced mushrooms with the onion, or stir in 1 cup of rinsed canned chickpeas during the last 5 minutes so they heat through without becoming mushy.
To make the sauce creamier, stir in 1/4 cup heavy cream along with the Parmesan, after turning off the heat. For a brighter flavor, add 1 teaspoon lemon zest at the end. Swap spinach for chopped kale, adding it about 5 minutes before the pasta is done so it has time to soften. If using salted broth, reduce or omit the listed salt and correct the seasoning only after the pasta is cooked.
Storage and Reheating
Cool leftovers promptly and transfer them to a shallow, airtight container within 2 hours of cooking; refrigerate at 40°F (4°C) or colder and use within 3 to 4 days. Do not leave cooked pasta at room temperature for longer than 2 hours, or 1 hour if the room is above 90°F (32°C). For food-safety guidance, reheat leftovers until steaming hot throughout, ideally to 165°F (74°C), checking the center with a food thermometer.
Reheat individual portions in a microwave-safe bowl with a splash of water or broth, covered loosely, stirring halfway through. On the stovetop, warm the pasta over low heat with a few tablespoons of broth or water, stirring gently until hot. The pasta absorbs sauce as it sits, so add liquid a little at a time rather than pouring in a large amount. Freezing is possible for up to 2 months, but the pasta may soften and the sauce may separate slightly; thaw overnight in the refrigerator and reheat thoroughly.
Frequently Asked Questions
Do I need to cook the pasta before adding it to the pan?
No. Add it dry directly to the simmering tomato-and-broth mixture. It cooks in the pan while releasing starch into the sauce, which is what gives this method its convenient, creamy finish.
Can I use a different pasta shape?
Yes. Choose dried pasta of a similar size and thickness, and begin checking it at the package’s suggested cooking time. Different shapes absorb liquid at different rates, so keep extra broth nearby and adjust as needed.
Why is my pasta still firm after the liquid is gone?
The heat may have been too high, the pan may be wide, or the pasta may need more time. Add broth or hot water 1/4 cup at a time, stir, cover, and continue at a gentle simmer until the center is tender.
Can I make this recipe gluten-free?
You can try a sturdy gluten-free dried pasta, but results vary by brand. It may release more starch or break more easily, so stir gently, check early, and follow the package timing as a starting point. Keep extra broth available and avoid leaving it to cook unattended.
Can I double the recipe?
Only if you have a very large, deep pan that can hold the ingredients without crowding. A doubled batch is harder to stir and may cook unevenly. For the most dependable results, make two separate batches rather than doubling in a standard skillet.