This American Italian pasta salad is a delightful fusion of flavors and textures, perfect for a summer picnic or a quick weeknight dinner. The combination of fresh vegetables, savory pepperoni, and creamy mozzarella cheese makes this dish a crowd-pleaser. The Italian dressing ties everything together with a zesty kick.
If you don't usually keep rotini pasta, cherry tomatoes, red onion, black olives, mozzarella cheese, or pepperoni in your pantry, you might need to make a trip to the supermarket. These ingredients are essential for achieving the authentic taste and texture of this pasta salad.

Ingredients for American Italian Pasta Salad Recipe
Rotini pasta: A type of corkscrew-shaped pasta that holds onto the dressing well.
Cherry tomatoes: Small, sweet tomatoes that add a burst of freshness.
Cucumber: Adds a cool, crisp texture to the salad.
Red onion: Provides a sharp, tangy flavor.
Black olives: Adds a salty, briny taste.
Mozzarella cheese: Cubed for a creamy, mild flavor.
Pepperoni: Sliced for a spicy, savory element.
Italian dressing: A zesty dressing that brings all the flavors together.
Technique Tip for This Pasta Salad
To enhance the flavor of your Italian dressing, consider making a homemade version using olive oil, red wine vinegar, garlic, dried oregano, basil, salt, and pepper. Whisk these ingredients together and let them sit for at least 30 minutes to allow the flavors to meld before tossing it with your pasta salad.
Suggested Side Dishes
Alternative Ingredients
uncooked rotini pasta - Substitute with uncooked penne pasta: Penne has a similar texture and will hold the dressing well.
halved cherry tomatoes - Substitute with grape tomatoes: Grape tomatoes have a similar sweetness and size.
diced cucumber - Substitute with diced zucchini: Zucchini has a similar crunch and mild flavor.
thinly sliced red onion - Substitute with thinly sliced shallots: Shallots offer a milder onion flavor that works well in salads.
sliced black olives - Substitute with sliced green olives: Green olives provide a similar briny flavor with a slightly different taste.
cubed mozzarella cheese - Substitute with cubed provolone cheese: Provolone has a similar texture and a slightly sharper flavor.
sliced pepperoni - Substitute with sliced salami: Salami offers a similar spicy and savory flavor profile.
italian dressing - Substitute with balsamic vinaigrette: Balsamic vinaigrette provides a tangy and slightly sweet flavor that complements the other ingredients.
Other Alternative Recipes Similar to This Pasta Salad
How to Store / Freeze This Pasta Salad
To keep your American Italian Pasta Salad fresh and delicious, store it in an airtight container. This will help maintain the crispness of the cucumber and the juiciness of the cherry tomatoes.
Place the container in the refrigerator. The salad will stay fresh for up to 3-4 days. This chilling period allows the Italian dressing to meld with the rotini pasta and other ingredients, enhancing the flavors.
If you plan to make the salad ahead of time, consider storing the dressing separately. This prevents the pasta from absorbing too much dressing and becoming soggy. Simply mix the dressing in just before serving.
For freezing, note that pasta salads generally do not freeze well due to the fresh vegetables and dairy components like mozzarella cheese. The texture of the cucumber and tomatoes can become mushy, and the cheese may lose its firmness.
If you must freeze, do so without the vegetables and dressing. Freeze only the cooked pasta and pepperoni. When ready to serve, thaw the pasta and add fresh vegetables and dressing.
To thaw frozen pasta, transfer it to the refrigerator the night before you plan to use it. This gradual thawing helps maintain the pasta's texture.
Always give the salad a good toss before serving to redistribute the dressing and ensure every bite is flavorful.
How to Reheat Leftovers
If you prefer your pasta salad warm, transfer it to a microwave-safe dish. Cover it with a damp paper towel to retain moisture and heat on medium power for 1-2 minutes, stirring halfway through.
For a stovetop method, place the pasta salad in a non-stick skillet over medium heat. Add a splash of olive oil or a bit more Italian dressing to prevent sticking. Stir occasionally until warmed through, about 3-5 minutes.
If you want to maintain the crispness of the vegetables and mozzarella cheese, consider reheating only the pasta and pepperoni. Separate these ingredients and warm them in the microwave or on the stovetop, then mix them back with the cold vegetables and cheese before serving.
For a quick fix, you can also use a hot water bath. Place the pasta salad in a heatproof, resealable plastic bag. Submerge the bag in a pot of hot (not boiling) water for about 5 minutes, or until warmed to your liking.
Best Tools for This Recipe
Large pot: Used to cook the pasta according to the package instructions.
Colander: Essential for draining the cooked pasta and rinsing it under cold water.
Large mixing bowl: Where you will combine the cooked pasta with all the other ingredients.
Chef's knife: Necessary for dicing the cucumber, slicing the red onion, and cubing the mozzarella cheese.
Cutting board: Provides a safe surface for chopping and slicing ingredients.
Measuring cups: Used to measure out the cherry tomatoes, cucumber, red onion, black olives, mozzarella cheese, and pepperoni.
Wooden spoon: Ideal for tossing the salad ingredients together with the Italian dressing.
Refrigerator: Used to chill the pasta salad for at least 1 hour before serving.
How to Save Time on Making This Pasta Salad
Pre-cook the pasta: Cook the rotini pasta ahead of time and store it in the refrigerator to save time on the day of preparation.
Use pre-sliced ingredients: Buy pre-sliced red onion, black olives, and pepperoni to cut down on prep time.
Ready-made dressing: Opt for a high-quality, store-bought Italian dressing to eliminate the need for making your own.
Batch prep: Dice the cucumber and halve the cherry tomatoes in advance and store them in airtight containers.
Chill quickly: Spread the salad on a baking sheet to chill faster in the refrigerator.

American Italian Pasta Salad Recipe
Ingredients
Main Ingredients
- 8 oz Rotini pasta uncooked
- 1 cup Cherry tomatoes halved
- 1 cup Cucumber diced
- ½ cup Red onion thinly sliced
- ½ cup Black olives sliced
- ½ cup Mozzarella cheese cubed
- ¼ cup Pepperoni sliced
- ¼ cup Italian dressing
Instructions
- Cook the pasta according to the package instructions. Drain and rinse under cold water.
- In a large mixing bowl, combine the cooked pasta, cherry tomatoes, cucumber, red onion, black olives, mozzarella cheese, and pepperoni.
- Pour the Italian dressing over the salad and toss to coat evenly.
- Chill in the refrigerator for at least 1 hour before serving.
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