4 Ingredient Pesto Baked Rigatoni Recipe
This is the kind of weeknight winner I turn to when I want something comforting, fast, and reliably delicious. It’s built from four pantry-friendly items plus a little fresh basil for brightness. The result is cheesy, saucy rigatoni that pulls apart nicely and never feels fussy.
The recipe leans on quality store-bought components: good rigatoni, a jar of pesto, crushed tomatoes, and shredded mozzarella. A splash of reserved pasta water helps everything bind into a silky coating that keeps the bake from drying out. Minimal effort, maximum payoff.
Your Shopping Guide

Shopping for this dish is straightforward. Buy the best rigatoni and pesto you can find within your budget—those two will carry most of the flavor. Opt for whole-milk mozzarella if you like a creamier melt. Fresh basil is optional but recommended; it lifts the finished dish with herbaceous, peppery notes.
Directions: 4 Ingredient Pesto Baked Rigatoni Recipe
Follow these clear, step-by-step directions. Quantities match the ingredient list exactly.
- Preheat the oven to 400°F.
- Bring a large pot of generously salted water to a rolling boil.
- Add 1 lb Delallo rigatoni and cook according to the package instructions until al dente. Timing will vary, but usually check 1–2 minutes before the package’s minimum to avoid overcooking.
- Before draining, reserve 1/4 cup of the pasta cooking water, then drain the rigatoni well.
- Place the hot, drained rigatoni into a large bowl. Add the reserved pasta water (you might not use the entire 1/4 cup—add gradually so the pasta is saucy but not watery), 6.35 ounces Delallo Simply Pesto (one jar), and 1 cup Delallo crushed tomatoes.
- Toss gently but thoroughly so every piece of rigatoni is coated with the pesto-tomato mixture. The hot pasta will loosen the pesto and meld the flavors; add the rest of the reserved water only if the mixture seems too dry.
- Spray a 9×13-inch baking dish with nonstick spray.
- Spread half of the pesto-coated pasta into the prepared baking dish in an even layer.
- Sprinkle half of the 2 cups shredded mozzarella cheese over that layer.
- Add the remaining pasta, spreading it evenly, then top with the remaining mozzarella.
- Bake in the preheated 400°F oven for 20 minutes, or until the cheese is melted, bubbling, and lightly golden at the edges.
- Remove from the oven and let sit 5 minutes. Garnish with chopped fresh basil before serving.
Why It’s My Go-To
This bake is effortless and forgiving. You can scale it up or down, and it survives transportation to potlucks. The pesto adds depth without needing a dozen ingredients; crushed tomatoes add acidity and body so the pesto doesn’t feel cloying. It’s comfort food that comes together faster than takeout.
Texture-Safe Substitutions

If you need to swap textures for dietary preferences or availability, here are reliable options that keep the dish satisfying:
- Rigatoni — swap for penne or ziti if needed; both hold sauce well.
- Delallo Simply Pesto — any high-quality pesto will work; for a smoother texture, use a creamier basil pesto.
- Crushed Tomatoes — use a can of tomato passata for a silkier finish, or diced tomatoes for more texture.
- Shredded Mozzarella — use a low-moisture mozzarella for a chewier finish; fresh mozzarella will be creamier but can add extra moisture.
Gear Up: What to Grab

Keep equipment minimal:
- Large pot for boiling pasta.
- Colander to drain.
- Large mixing bowl for tossing the pasta with sauce.
- 9×13-inch baking dish (glass or metal) and nonstick spray.
- Spoon or silicone spatula for mixing and spreading.
Troubles You Can Avoid
These are common missteps and how to dodge them.
- Dry bake — don’t skip reserving pasta water. It thins and binds the sauce so the bake stays saucy after cooking.
- Overcooked pasta — pull the rigatoni al dente; it will finish in the oven and should still have a slight bite.
- Soggy leftovers — cool completely before refrigerating and store in an airtight container to retain texture.
Make It Fit Your Plan
Meal prep-friendly: assemble the dish up to the point of baking, cover, and refrigerate for up to 24 hours. When ready, bake an extra 5–8 minutes if starting cold. To serve fewer people, halve the ingredients and use a smaller baking dish; baking time will be slightly shorter.
Method to the Madness
Why this combination works: pesto provides concentrated umami, herbs, and fat; crushed tomatoes add acidity and volume; pasta water acts as an emulsifier to unify oil-based pesto with watery tomatoes. Mozzarella creates a golden, stringy finish that makes the dish feel indulgent.
Make-Ahead & Storage
To make ahead: assemble in the baking dish, cover tightly, and refrigerate for up to 24 hours. Bring to room temperature before baking and add a few extra minutes to the bake time if cold.
Storage: cool completely, then refrigerate in an airtight container for 3–4 days. Reheat individual portions in the microwave or reheat the whole dish covered with foil at 350°F until warmed through. For best texture, uncover for the last 5 minutes to re-crisp the cheese.
Helpful Q&A
Q: Can I freeze this?
A: I don’t recommend freezing after baking—the texture of the cheese and pasta changes. You can assemble unbaked in a freezer-safe dish, freeze, and bake from frozen adding 10–15 extra minutes.
Q: Is fresh basil necessary?
A: It’s optional but recommended. Fresh basil adds a bright, peppery finish that complements both the pesto and crushed tomatoes.
Q: Can I add protein or vegetables?
A: Yes—stir cooked sausage, shredded chicken, or roasted vegetables into the pasta before layering. Keep quantities reasonable so the balance of sauce to pasta remains.
See You at the Table
This 4-ingredient pesto baked rigatoni is a reminder that great food doesn’t have to be complicated. With a few quality ingredients and simple steps, you get a comforting, shareable dish that’s perfect for busy nights or casual get-togethers. Make it, serve it warm, and watch it disappear.
Ingredients
- 1 lb Delallo Rigatoni — sturdy tube pasta that holds sauce and creates bite.
- 6.35 ounces Delallo Simply Pesto (1 jar) — concentrated basil flavor and oil to carry richness.
- 1 cup Delallo Crushed Tomatoes — adds acidity and volume to balance the pesto.
- 1/4 cup reserved pasta water (might not use the entire 1/4 cup) — emulsifies the pesto and tomato into a silky sauce.
- 2 cups shredded mozzarella cheese — melts into a bubbly, cheesy topping.
- Fresh basil, chopped — for garnish and fresh herbal lift (optional but recommended).

4 Ingredient Pesto Baked Rigatoni Recipe
Ingredients
- 1 lb Delallo rigatoni
- 6.35 ounces Delallo Simply Pesto about 1 jar
- 1 cup Delallo crushed tomatoes
- 1/4 cup reserved pasta water may not use entire amount
- 2 cups shredded mozzarella cheese
- fresh basil chopped, for garnish
Instructions
- Preheat the oven to 400°F (200°C).
- Bring a large pot of salted water to a boil and cook the rigatoni according to package directions until al dente.
- Reserve 1/4 cup of the pasta cooking water, then drain the pasta in a colander.
- Return the hot pasta to a large bowl and add the pesto and crushed tomatoes. Add some reserved pasta water as needed to create a slightly saucy coating without making the pasta watery; stir to combine.
- Spray a 9x13-inch baking dish with nonstick spray. Spread half of the pasta into the dish and sprinkle with half of the shredded mozzarella.
- Add the remaining pasta, top with the remaining mozzarella, and spread evenly.
- Bake for about 20 minutes, or until the cheese is melted and bubbly.
- Remove from the oven and serve garnished with chopped fresh basil.
Equipment
- Large Pot
- Colander
- large mixing bowl
- 9×13 baking dish
- nonstick spray
- spatula or spoon
Notes
- Use reserved pasta water sparingly to avoid a watery bake.
- Choose a jarred pesto you enjoy for best flavor.
- Shred mozzarella fresh for better melting.
- Let the baked pasta sit 2–3 minutes before serving.
