For the Spinach Dip Filling:

• 10 ounces Frozen Spinach, Thawed and Drained: Spinach is, of course, the star of the show. Frozen spinach is incredibly convenient and works beautifully in this recipe. However, the key is to ensure it’s thoroughly thawed and, even more importantly, meticulously drained. Excess moisture is the enemy of a perfect spinach dip, leading to a watery filling and potentially soggy bites. After thawing, squeeze the spinach with your hands or use a clean kitchen towel to remove as much liquid as possible. Don’t be shy – you’ll be surprised how much water spinach retains! If you prefer using fresh spinach, you’ll need approximately 1 pound of fresh spinach. Sauté it until wilted, then chop it finely and, again, press out any excess moisture. Baby spinach is a great choice for its tender leaves and mild flavor.
• 8 ounces Cream Cheese, Softened: Cream cheese provides the creamy, luscious base of our dip. Full-fat cream cheese will give you the richest flavor and texture, but you can use reduced-fat cream cheese if you’re looking to lighten things up slightly. Make sure your cream cheese is properly softened before you begin mixing. This is crucial for a smooth and lump-free dip. Leaving it at room temperature for about 30 minutes to an hour should do the trick. If you’re in a hurry, you can carefully microwave it in short intervals, checking frequently to avoid melting. For a tangier flavor profile, consider using Neufchâtel cheese, which is a lower-fat alternative to cream cheese.
• 1/2 cup Mayonnaise: Mayonnaise adds moisture and richness, contributing to the overall creamy texture and enhancing the savory flavors of the dip. Full-fat mayonnaise will deliver the best flavor, but light mayonnaise can be used as a substitute. For a richer, more homemade taste, consider using a high-quality mayonnaise made with olive oil or avocado oil. If you are looking for a tangier flavor, you could experiment with using a flavored mayonnaise, such as roasted garlic or chipotle mayo, for an interesting twist.
• 1/2 cup Sour Cream: Sour cream adds a delightful tang and further creaminess to the dip, balancing the richness of the cream cheese and mayonnaise. Full-fat sour cream is recommended for the best flavor and texture, but reduced-fat or even Greek yogurt can be substituted for a slightly tangier and healthier option. Plain Greek yogurt will add protein and a similar creamy texture, although it will be noticeably tangier than sour cream. If using Greek yogurt, you might want to add a touch more mayonnaise to maintain the desired richness.
• 1/2 cup Grated Parmesan Cheese: Parmesan cheese brings a salty, nutty, and umami-rich flavor to the spinach dip. Freshly grated Parmesan is always superior in flavor compared to pre-shredded. Consider using a microplane or fine grater to achieve finely grated Parmesan that melts beautifully into the dip. For a stronger Parmesan flavor, use Parmigiano-Reggiano. You can also experiment with other hard cheeses like Pecorino Romano for a sharper, saltier bite, or Asiago for a nuttier, milder flavor.
• 1/4 cup Chopped Water Chestnuts, Drained: Water chestnuts provide a delightful, unexpected crunch and subtle sweetness that contrasts beautifully with the creamy spinach dip. Canned water chestnuts are readily available and work perfectly. Make sure they are thoroughly drained and chopped into small, even pieces. If you can’t find water chestnuts, or prefer a different texture, you could substitute them with finely diced celery for a fresh, crisp element, or toasted breadcrumbs for a textural contrast.
• 1/4 cup Chopped Red Onion: Red onion adds a pungent, slightly sweet flavor that complements the other savory ingredients. Finely chop the red onion to ensure it distributes evenly throughout the dip and doesn’t overpower the other flavors. If you prefer a milder onion flavor, you can substitute with finely chopped shallots or green onions. For a sweeter note, try using Vidalia onions. Soaking the chopped red onion in cold water for 10 minutes before adding it to the dip can also mellow its sharpness.
• 2 cloves Garlic, Minced: Garlic is essential for adding a savory, aromatic depth to the spinach dip. Freshly minced garlic is highly recommended for the best flavor. You can use a garlic press or mince it finely with a knife. If you are not a fan of raw garlic’s intensity, you can sauté the minced garlic in a little butter or olive oil until fragrant before adding it to the dip. Roasted garlic can also be used for a sweeter, mellower garlic flavor.
• 1/4 teaspoon Salt: Salt enhances all the flavors in the dip and is crucial for seasoning. Start with 1/4 teaspoon and adjust to taste. Remember that Parmesan cheese is already salty, so taste the dip before adding more salt. Sea salt or kosher salt are excellent choices.
• 1/4 teaspoon Black Pepper: Black pepper adds a subtle spice and warmth to the dip. Freshly ground black pepper is always preferable for its brighter, more aromatic flavor. Adjust the amount of pepper to your preference. White pepper can be used as a substitute for a milder flavor.
• Pinch of Nutmeg (Optional): A pinch of nutmeg adds a subtle warmth and complexity that beautifully complements spinach and creamy sauces. It’s a classic addition to spinach dip and enhances the overall flavor profile. Use freshly grated nutmeg for the best aroma and flavor. A little goes a long way, so just a pinch is all you need.

For the “Bite” – The Crust:

• 1 package (14.1 ounces) Refrigerated Pie Crusts: Refrigerated pie crusts provide a convenient and flaky base for our Spinach Dip Bites. You can find these in the refrigerated section of most grocery stores. Make sure to use pie crusts, not puff pastry, for this recipe. Puff pastry will puff up too much and might not hold the dip filling as well. If you prefer to make your own pie crust from scratch, feel free to do so! A homemade pie crust will add an even more personal touch. For a slightly different flavor and texture, you could experiment with using crescent roll dough or even mini phyllo cups, though pie crust provides a sturdier and more classic bite.
• 1 Egg, Beaten (for egg wash): An egg wash is used to brush the pie crust before baking, giving it a beautiful golden-brown color and a slight sheen. Simply beat one egg with a tablespoon of water or milk to create the egg wash. This step is optional, but it significantly improves the visual appeal of the Spinach Dip Bites.