Hot Onion Spinach Dip is a creamy, cheesy baked spinach dip made with just five simple ingredients, including an onion soup mix and Swiss cheese. This easy hot spinach dip recipe comes together quickly and is perfect for holiday parties, game days, or any gathering where you need a crowd-pleasing appetizer.
Hot Onion Spinach Dip is one of those classic appetizer recipes that never goes out of style. It is warm, cheesy, comforting, and incredibly easy to make, which makes it perfect for holidays, parties, or anytime you need a quick appetizer that everyone will love.
One of my favorite things about this hot spinach dip recipe is how simple it is. With only five ingredients, there is no chopping, no complicated prep, and no fancy techniques required. You mix everything together, bake it until bubbly and golden, and that is it.
This Hot Onion Spinach Dip also works great as a make-ahead appetizer. You can prep the dip earlier in the day or even the day before, store it in the refrigerator, then pop it in the oven right before guests arrive. Easy, stress-free, and delicious.
If you love warm, cheesy dips, this one is a must-try. It is rich, savory, and pairs perfectly with a variety of dippers, from chips to fresh veggies.
What Is Hot Onion Spinach Dip?
Hot Onion Spinach Dip is a baked appetizer made with cream cheese, mayonnaise, spinach, onion soup mix, and shredded cheese. Unlike cold spinach dip, this version is baked until hot and melty, creating a creamy, scoopable dip with bold onion flavor and plenty of cheese. If you’d rather a no-bake version, check out this Cold Spinach Dip recipe.
What I Love About This Recipe
- It uses only five simple ingredients that are easy to find at any grocery store, which makes it great for last-minute entertaining.
- The onion soup mix adds a ton of flavor without the need for chopping onions or extra seasonings.
- It can be made ahead of time and baked right before serving, which is perfect for holidays and parties.
- The dip comes out warm, creamy, and cheesy every single time.
- It pairs well with so many different dippers, making it easy to customize for your crowd.
Equipment You May Need
- Mixing Bowl – For combining all of the dip ingredients evenly.
- Electric Mixer or Spoon – Helps mix the cream cheese smoothly with the other ingredients.
- 9-Inch Pie Plate or Baking Dish – Used to bake the dip until hot and bubbly.
- Measuring Cups – For accurate ingredient measurements.
Ingredients
- Cream Cheese – Softened so it mixes smoothly without lumps.
- Mayonnaise – Adds richness and creaminess to the dip.
- Dried Onion Soup Mix – Provides bold onion flavor with no prep work.
- Frozen Chopped Spinach – Defrosted, drained, and dried well to prevent excess moisture.
- Shredded Swiss Cheese – Melts beautifully and adds a slightly nutty flavor.
How to Make Hot Onion Spinach Dip
Step One: Preheat the Oven
Preheat the oven to 375 degrees F so it is ready when the dip is assembled.
Step Two: Mix the Base
In a large mixing bowl, combine the softened cream cheese, mayonnaise, and onion soup mix. Stir or mix on low speed until smooth and fully combined.
Step Three: Add Spinach and Cheese
Stir in the drained spinach and one cup of the shredded Swiss cheese until evenly mixed.
Step Four: Assemble the Dip
Spoon the mixture into an ungreased 9-inch pie plate and spread it into an even layer. Sprinkle the remaining Swiss cheese evenly over the top.
Step Five: Bake
Bake the dip for about 20 minutes, or until heated through and bubbly.
(Full printable recipe card with full details is at bottom of post.)
Serving Suggestions
- Serve warm with pita chips, tortilla chips, or bagel chips for dipping.
- Pair with fresh vegetables like carrots, celery, or bell pepper strips.
- Serve as part of an appetizer spread alongside other hot dips.
- Spoon onto toasted bread or crostini for an easy bite.
Quick Tips for Best Results
- Make sure the spinach is very well drained to avoid a watery dip.
- Use room temperature cream cheese so the dip mixes smoothly.
- Shred your own cheese if possible for the best melting texture.
- Serve the dip warm for the best flavor and consistency.
Hot Onion Spinach Dip FAQ
How should I store Hot Onion Spinach Dip?
Store leftover dip covered in an airtight container in the refrigerator for up to 3 days.
Can I freeze Hot Onion Spinach Dip?
Freezing is not recommended, as the texture may change once thawed due to the cream cheese and mayonnaise.
How long will Hot Onion Spinach Dip last?
When stored properly in the refrigerator, the dip will last about 3 days.
Substitutions?
You can substitute Swiss cheese with mozzarella, Monterey Jack, or cheddar. You can also use low-fat cream cheese or mayonnaise, though the texture may vary.
Can I use low-fat ingredients?
Yes, but keep in mind that the dip may be less creamy and rich compared to using full-fat ingredients.
What else can I add to this recipe?
Try adding cooked bacon, diced artichokes, or a pinch of crushed red pepper flakes for extra flavor.
Can I make this vegan/vegetarian/low carb/gluten-free?
Here are some suggestions, but I can’t guarantee results. Be sure as always to check particular brands and ingredients if you’re following a specific diet or have diet restrictions or allergies.
Vegan – This would be a tough one to make vegan. You may have to substitute the cream cheese, mayonnaise, Swiss cheese, and Onion Soup Mix.
Vegetarian – It’s vegetarian. Be sure to check individual brands/products just to be sure though.
Low-Carb – The recipe is low-carb. Check individual brands and ingredients as needed.
Gluten-Free -The onion soup mix may contain gluten, so doubl- check the brand you get.
Hope you enjoy this delicious Hot Onion Spinach Dip! You might also like this homemade Chicken Alfredo Dip and Ham Dip!
Hot Onion Spinach Dip
Ingredients
- 8 ounces cream cheese softened
- 1/2 cup mayonnaise
- 1 (1 oz.) envelope dried Onion Soup Mix
- 1 (10 oz. ) package defrosted frozen chopped spinach drained & dried
- 2 cups shredded Swiss cheese divided
Instructions
- Preheat oven to 375 degrees F.
- In a large bowl mix together cream cheese, mayonnaise, and soup mix with a large spoon or electric mixer on low until well combined. Stir in spinach and one cup of Swiss cheese.
- Spoon dip into an ungreased 9-inch pie plate. Spread dip to edges of the pie plate and to form an even layer. Sprinkle remaining one cup of Swiss cheese on top.
- Bake dip for about 20 minutes at 375 degrees F or until heated through.
Notes
- Be sure the cream cheese is at room temperature and soft to prevent lumps.
- The dip can be made ahead of time, covered, and refrigerated for a few days. Let the dip come to room temperature before baking.
- Instead of Swiss cheese, you could substitute your favorite shredded cheese.
- You can use low-fat ingredients in this recipe, BUT the consistency and taste of the finished dish may vary a lot.
Nutrition:
(Nutrition data is provided when available for informational purposes only and calculated using an online nutritional calculator. For the most accurate information please calculate based on specific ingredients and brands you use as well as any changes you made to the recipe. I am not a certified nutritionist or registered dietician and any nutritional information provided should only be used as a general guideline and estimate.)
Tshell says
Tried your recipe. It was so easy to make and super delicious. Thanks!
Michelle @ The Complete Savorist says
This looks wonderful, love the flavors.
Christie says
Like the spin you put on this onion dip.
April says
sounds awesome!
Kristi @ Inspiration Kitchen says
I love dips for the holidays!
Sarah says
This looks so yummy! And perfect for parties!