Remove the linguica from the pan. Add the shrimp, cooking for 1 minute per side until just turning pink.
Preheat the oven to 400F degrees and lay out each pita bread on a parchment paper lined baking sheet (you may need 2 baking sheets depending on the size).
Add 2-3 tablespoons of the chimichurri and spread over the pita bread.
Add the onions, hearts of palm and browned linguica. Top with the shrimp.
Add 2-3 tablespoons of burrata over the top of each flatbread pizza.
Bake for 20-25 minutes, until the crust is golden brown and the cheese is bubbly.
Serve with extra chimichurri sauce on the side for crust dipping.
Red Pepper Chimichurri:
Combine all ingredients in a food processor and pulse until a sauce forms. Add additional salt to taste if necessary.
Notes
Make the chimichurri in advance to save some time. Store it in the fridge for up to 5 days in a covered container.
Substitute naan for the pita bread.
Substitute marinated (rinsed) artichoke hearts for the hearts of palm if you can't get them.
Add more or less burrata depending on how much cheese you like.