Spinach Mushroom Bake Dip is my go-to when I want a hot, creamy dip that feels a little more substantial than plain spinach dip. The mushrooms make it taste savory and “real dinner food” to me, not just cheese in a dish.
This version is garlicky, a little tangy from the sour cream, and finishes with that melted cheese top that’s hard to stop scooping. I also like that the spinach stays present instead of disappearing into the cream cheese.
I serve it most often as a party appetizer with chips and toasted bread, but it’s also great for casual nights when you want something warm to snack on. A veggie tray on the side makes it feel more balanced.
Why You’ll Love This Recipe
Rich and savory: Mushrooms, garlic, and parmesan make this taste deeper than a basic spinach dip.
Super creamy: The cream cheese base stays smooth and scoopable, especially when served warm.
Not watery: Using frozen spinach (squeezed very dry) keeps the dip thick instead of runny.
Easy to bake: It’s straightforward and reliable, and the oven does most of the work.
Make-ahead friendly: You can assemble it early and bake it when you’re ready to serve.
Ingredients You’ll Need
Saute
- Olive oil: Just a little is enough to get the mushrooms going without making the dip feel greasy.
- Cremini mushrooms: I like creminis here because they have more flavor than white button mushrooms. Chop them pretty small so you don’t get big chewy pieces.
- Yellow onion: This gives the dip a nice savory backbone. Dice it fine so it blends in.
- Garlic: Fresh is best here. Mince it small so it doesn’t clump in the dip.
- Kosher salt: Seasoning the mushrooms and onions as they cook helps everything taste more balanced.
- Black pepper: Simple, but don’t skip it. It keeps the dip from tasting flat.
Creamy base
- Cream cheese: Softened cream cheese mixes a lot easier and keeps the base smooth. Full-fat is what I use for the best texture.
- Sour cream: This gives the dip that classic tangy spinach dip flavor. Plain Greek yogurt works too if that’s what you keep around.
- Mayonnaise: I know some people avoid it, but it really helps make the dip taste richer and less “chalky” than using only cream cheese.
Greens and cheese
- Frozen chopped spinach: This is the easiest option and it’s very consistent. The big thing is squeezing it very dry so the dip bakes up thick.
- Mozzarella: This is the melty, stretchy part. You can swap in pepper jack or fontina if you want a stronger cheese.
- Parmesan: I like using real grated parmesan (not the shelf-stable kind) for better flavor. It also gives the dip a little salty bite.
- Crushed red pepper flakes: Totally optional, but I like a small pinch. It doesn’t make it “spicy,” it just wakes things up.
Topping and serving
- Mozzarella: A little extra on top gives you that browned, bubbly layer. I use the same mozzarella as in the dip.
- Parmesan: This is optional, but a light sprinkle on top browns nicely under the broiler.
- Tortilla chips: Great for scooping, especially sturdy restaurant-style chips.
- Toasted baguette slices: I like these when I want something a little more “appetizer platter” than chips.
- Crackers: Go with something sturdy so it doesn’t snap in the dip.
- Sliced vegetables: Bell peppers, cucumbers, and carrots are my usual picks.
Recipe Instructions
- Preheat the oven: Heat the oven to 375°F and lightly grease a 1-quart baking dish.
- Cook the vegetables: Heat the olive oil in a skillet over medium heat, then cook the mushrooms and onion until the liquid releases and mostly evaporates, about 8 to 10 minutes.
- Add the garlic: Stir in the garlic and cook for about 30 seconds, then take the skillet off the heat and let it cool for 2 minutes.
- Mix the base: In a bowl, mix the cream cheese, sour cream, and mayonnaise until smooth.
- Stir in the fillings: Add the spinach, the mushroom mixture, 1 cup mozzarella, the parmesan, black pepper, and red pepper flakes (if using). Stir until everything is evenly combined.
- Top the dip: Spread the mixture into the baking dish, then top with the remaining 1/2 cup mozzarella and optional parmesan.
- Bake: Bake for 18 to 22 minutes, until hot and bubbly.
- Broil: If you want more browning, broil for 1 to 2 minutes, watching closely.
- Rest and serve: Let the dip rest for 5 minutes, then serve warm with chips, bread, crackers, or sliced vegetables.
Some of my tips!
This is the part that really makes a difference. If you only read one section, make it this one because this is where I share the little trick that helps the recipe turn out so well.
Recipe Tips & Tricks
Squeeze the spinach like you mean it. Watery spinach is the #1 reason baked spinach dips come out thin. I press it hard in a clean towel until it’s almost crumbly.
Let the mushrooms cook until the pan is mostly dry. If there’s still a lot of liquid in the skillet, it will end up in the dip. Keep cooking a few extra minutes if you need to.
Soften the cream cheese first. If it’s cold, it’s hard to mix smooth and you’ll get little lumps. Room temp is easiest.
Go easy on the broiler. It can go from “nicely browned” to scorched fast. I stay right by the oven and pull it as soon as the top spots deepen in color.
Use a sturdier dipper. Thin chips and delicate crackers can snap. Thick tortilla chips or toasted baguette slices make it less messy.
Make some touches!
There are plenty of easy ways to serve this depending on the occasion. Keep it simple, or add a few small touches to make it feel a little more special.
Serving Suggestions
- Toasted bread: Slice a baguette, brush lightly with olive oil, and toast until crisp. It holds up well and feels a little nicer than chips.
- Veggie tray: Serve with bell pepper strips, cucumbers, and carrots. I like something fresh and crunchy next to a rich dip.
- Crackers: Pick a sturdy cracker like wheat crackers or pita chips. Anything too thin tends to break once the dip is hot.
- Alongside wings: This is great on a snack table with baked wings or chicken tenders. It’s a nice option if you want something creamy next to spicy food.
Save it for later
This section covers how to store leftovers and what parts of the recipe you can prepare ahead of time.
Storage and Make Ahead
Store leftovers covered in the fridge for up to 4 days. Reheat single portions in the microwave, or warm the whole dish in the oven until heated through.
You can also make this recipe ahead. Assemble it in the baking dish, cover tightly, and refrigerate for up to 24 hours before baking.
When baking from cold, you’ll usually need an extra 3 to 5 minutes in the oven. Keep baking until it’s bubbling around the edges and hot in the center.
If you want to freeze it, freeze individual portions in airtight containers. Thaw in the fridge overnight, then reheat until hot.
A few quick answers
This section covers a few extra details that may help before you head to the recipe card.
Recipe FAQs
How do I keep spinach mushroom dip from getting watery?
Squeeze the thawed spinach very dry, and cook the mushrooms until most of their liquid evaporates. Those two steps make the biggest difference.
Can I use fresh spinach instead of frozen?
You can, but you’ll need to cook it down first and squeeze it dry just like you would with frozen. Fresh spinach holds a lot of water, so don’t skip that part.
What other cheeses work well in this dip?
Pepper jack is great if you want a little heat, and fontina melts nicely and tastes a bit richer. A small handful of sharp cheddar works too, but I’d still keep some mozzarella for the melt.
Can I add Worcestershire sauce or sun-dried tomatoes?
Yes. I like adding about 1 teaspoon Worcestershire sauce for a deeper savory flavor, or a couple tablespoons chopped sun-dried tomatoes for a slightly tangy, sweet bite.
How do I know when the dip is done baking?
The edges should be bubbling and the center should look hot and slightly puffed. If the top isn’t as browned as you like, a short broil at the end helps, but watch it closely.
You might also like
Before you go, take a look at a few other recipes below the recipe card. They use similar ingredients in a different way and are worth saving too.
MORE DINNER RECIPES TO TRY
Spinach Mushroom Bake Dip
INGREDIENTS
Saute
- 1 tbsp olive oil
- 8 oz cremini mushrooms finely chopped
- ½ cup yellow onion finely diced
- 2 cloves garlic minced
- ½ tsp kosher salt
- ¼ tsp black pepper.
Creamy base
- 8 oz cream cheese softened
- ½ cup sour cream
- ¼ cup mayonnaise.
Greens and cheese
- 10 oz frozen chopped spinach thawed and squeezed very dry
- 1 cup shredded mozzarella
- ½ cup grated parmesan
- ¼ tsp crushed red pepper flakes optional.
Topping and serving
- ½ cup shredded mozzarella
- grated parmesan for topping optional
- tortilla chips
- toasted baguette slices
- crackers
- sliced vegetables.
INSTRUCTIONS
Prep and saute
- preheat oven to 375 degrees F and lightly grease a 1 quart baking dish
- heat olive oil in a skillet over medium heat then cook mushrooms and onion until liquid releases and mostly evaporates about 8 to 10 minutes
- add garlic and cook 30 seconds then remove from heat and cool 2 minutes.
Mix and bake
- in a bowl mix cream cheese sour cream and mayonnaise until smooth
- stir in spinach mushroom mixture 1 cup mozzarella parmesan black pepper and red pepper flakes until evenly combined
- spread into baking dish and top with 0.5 cup mozzarella and optional parmesan.
Finish and serve
- bake until hot and bubbly 18 to 22 minutes then broil 1 to 2 minutes for deeper browning if desired
- rest 5 minutes and serve warm with chips bread or vegetables.
