Green chile tilapia crostini meets sweet watermelon salsa in these crostini – your new go-to appetizer for warm weather entertaining.
If bruschetta had babies…this is what they would be.
These are crostini, and I’m officially obsessed. I have soooo many ideas for this now that I’ve made these.
Believe it or not, these were made because of this fantastic watermelon salsa I came up with last night after grilling some watermelon. It’s sweet, just slightly spicy, but most of all very fresh.
And summery, and I honestly cannot get enough of summer.
There’s just something about grilled and smoked foods that make your food magical. It lends a smoky flavor that is unlike anything else, and always reminds me of summertime. Grilling watermelon brings out the sweetness a little more, and adds that luscious, smoky flavor. You don’t have to grill the melon; it will still be delicious.
And yes, I know what you’re thinking: Watermelon on fish? Have you lost your mind? Just stick with me here. The heat from the chile (not hot) wakes up the mild tilapia, the watermelon cools it down, and the crostini give you just the right amount of crunch. It’s one of those combos that sounds weird on paper but makes total sense the second you take a bite.
How To Make Green Chile Tilapia Crostini with Watermelon Salsa
To begin with, I started by making miniature tilapia “burgers”, refrigerated them for about an hour to make sure that the mixture wouldn’t fall apart, and then I browned my tiny fish patties in olive oil.
While they were cooking, I brushed thin slices of Italian bread with butter and browned them quickly in the oven.
After taking them out, I gave them a little mild heat by drizzling some Stubb’s Green Chile Sauce on the bottoms and topped with tilapia. Unfortunately, this sauce is no longer in their lineup, but you could easily make a green chile sauce with a can of diced green chiles, or by using fresh hatch chiles like this recipe.
Stubb’s authentic sauces, rubs and marinades get their bold flavors from real ingredients, with no artificial flavors, colors or sweeteners, or high fructose corn syrup – check out their complete line of rubs, sauces and marinades here.
Then…
I topped them with the watermelon salsa and feta cheese.
If you say you don’t like feta cheese, I have to wonder… Have you tried it? For real tried it??
If not, please do me a solid and just try it out. Feta cheese does a nice job of cutting through the spiciness of the salsa and green chile sauce and gives it a nice salty component.
Why This Works (and Works Hard)
Tilapia is one of those blank-slate proteins — mild, tender, and ready to soak up whatever flavor you throw its way. Enter green chile: smoky, spicy, and capable of turning a mild-mannered fish into something people will fight over. And then there’s watermelon salsa, the wild card that ties it all together. It’s juicy, sweet, and refreshing, so every bite has that “oh hey, I want another one” factor.
The crostini? Think of them as the hype crew. Crunchy, toasty, perfectly sized to hold everything together without overshadowing what’s on top.
When to Serve Green Chile Tilapia Crostini
Honestly? Anytime you want to look like you tried harder than you actually did.
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Summer parties: These scream “patio food” in the best way.
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Cocktail hour: They’re fancy enough for wine night but casual enough for beer on the deck.
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Cookouts: Serve these alongside the burgers and hot dogs and watch everyone suddenly remember you’re the friend who can cook.
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Holiday apps: Yes, even in December. Nothing wrong with reminding people what summer tastes like.
Variations and Hacks
Not into tilapia? Fine. Swap it out:
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Shrimp – Grill or sauté, then pile on the salsa.
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Salmon – A little richer, still plays nice with watermelon.
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Chicken – Because yes, chicken also loves green chile.
Not into watermelon? First of all… how dare you. But fine. Try mango, pineapple, or even peach salsa instead.
Want to lean harder into the heat? Add habanero to the salsa. Just don’t come crying to me when your guests need a second cocktail.
Here’s your printable-
Green Chile Tilapia Crostini with Watermelon Salsa
Crispy crostini topped with green chile tilapia and juicy watermelon salsa - sweet, mild heat in every bite, perfect for summer parties.
Ingredients
Watermelon Salsa
- 1 lbs watermelon, diced (I grilled mine, but you don't have to)
- 1 jalapeno, diced
- ½ yellow onion, diced
- 17 oz can petite diced tomatoes, diced a little smaller
- Handful fresh basil leaves, chiffonaded (is that a word?)
- 1 tbsp olive oil
- 1 tbsp white vinegar
- Salt and pepper to taste
Tilapia Crostini
- 1 lb. tilapia, cooked through and flaked
- 1 egg, whisked
- ½ cup bread crumbs
- 1 tbsp basil, dried
- 1 tbsp Feiny's Rubs - Chesapeake Bay *
- 1 tbsp sea salt
- 1 tsp black pepper
- 1 baguette, or loaf of Cuban bread, sliced thin
- ½ cup green chile sauce, divided in half
- Feta cheese, crumbled
Instructions
- Preheat oven to 425°.
- Make the salsa by combining everything in a large mixing bowl; salt to taste and refrigerate.
- Combine the tilapia through pepper and half green chile sauce; form into tiny slider-size burgers (size to fit crostini, or the size of your bread slices).
- Over medium heat, heat olive oil and brown tilapia sliders on both sides.
- Toast the baguette slices in the oven at 425° for 3-5 minutes, until brown.
- Assemble sliders by drizzling more green chile sauce on bottom crostini, add tilapia, salsa and feta and top.
- Serve.
Notes
*This is my choice, but you could use Old Bay as a substitute.
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Here’s your pinnable!
This post was updated on 09/24/2025.
This Post Has 4 Comments
i love everything about this
Shea! You are so stinkin’ creative!! Love these littl’ slider crostinis! Just fabulous!!
I dont think I have ever seen Tilapia look this good wow looks delish!
This is much more exciting than regular sliders, and the flavors sound amazing as well!