One-Pot Diavola Spicy Pasta (Printable Version)

Bold Italian pasta simmered with herbs, red pepper flakes, and Parmesan for a spicy, vibrant meal.

# What You’ll Need:

→ Pasta

01 - 12 oz penne or rigatoni
02 - 4 cups water or low-sodium vegetable broth

→ Vegetables

03 - 1 medium red onion, finely chopped
04 - 3 garlic cloves, minced
05 - 1 red bell pepper, thinly sliced
06 - 14 oz canned diced tomatoes

→ Seasonings

07 - 2 tbsp olive oil
08 - 2 tsp Italian seasoning
09 - 1½ tsp crushed red pepper flakes
10 - 1 tsp smoked paprika
11 - 1 tsp salt
12 - ½ tsp freshly ground black pepper

→ Finishing Touches

13 - ⅓ cup grated Parmesan cheese
14 - 2 tbsp chopped fresh parsley or basil
15 - Zest of ½ lemon (optional)

# Step-by-Step Guide:

01 - Heat olive oil in a large deep skillet or Dutch oven over medium heat. Add the finely chopped red onion and cook for 2 to 3 minutes until softened.
02 - Stir in the minced garlic and thinly sliced red bell pepper. Cook for an additional 2 minutes until fragrant.
03 - Add canned diced tomatoes with their juices, pasta, water or broth, Italian seasoning, crushed red pepper flakes, smoked paprika, salt, and freshly ground black pepper. Stir thoroughly to combine.
04 - Bring mixture to a boil, then reduce heat to a simmer. Cook uncovered for 12 to 14 minutes, stirring frequently, until pasta is al dente and most liquid is absorbed.
05 - Remove from heat. Stir in grated Parmesan cheese and lemon zest if desired. Adjust seasoning to taste.
06 - Plate the pasta hot, garnished with chopped fresh parsley or basil and additional Parmesan cheese as preferred.

# Expert Tips:

01 -
  • Everything cooks in one pot, which means you're actually done by the time dinner hits the table instead of drowning in a sink full of dishes.
  • The heat sneaks up on you in the best way—it's not aggressive, just a warm, peppery finish that makes you want another bite.
  • You can adjust the spice level completely to your mood; some nights I dial it back, other nights I push it.
02 -
  • Don't wander off while it's simmering—that's when the magic happens, and a pot that boils over is a disaster you don't recover from gracefully.
  • The heat from the pepper flakes actually builds as the pasta sits, so it tastes hotter ten minutes later than it does the moment you finish cooking.
  • If your liquid disappears too fast and the pasta's still hard, add more broth a splash at a time; every stove behaves differently.
03 -
  • Keep a wooden spoon moving through this as it cooks—stuck pasta on the bottom is how you go from dinner to regret in seconds.
  • Taste the pasta a minute before you think it's done; residual heat keeps cooking it, and al dente is the whole point.
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