Preheat your oven to 400°F (200°C).

In a medium bowl, combine the drained shrimp, cream cheese, cheddar cheese, Old Bay seasoning, dried minced onion, and kosher salt. Mix until fully incorporated.

Carefully cut the jalapenos in half lengthwise and remove the seeds. Generously fill each half with the shrimp mixture.

Arrange the stuffed jalapenos on a baking sheet and bake for about 20 minutes or until tender and the filling is golden brown.

Enjoy them warm, optionally with dipping sauces like ranch or salsa.