Pre-heat the oven to 400°F.
In a food processor, place the yuca flour, precooked cornmeal, cheese and butter. Process until well combined. Add the eggs slowly while food processor is running.
Divide the mixture into 12 equal portions, shaping them into balls. Make a hole in the middle of each ball and insert one piece of guava paste.
Place on a baking sheet lined with parchment paper and bake for about 15 minutes or until golden on top. Serve warm.