Mix the ingredients until well combined.
Place a teaspoon of the sausage mixture onto the center of each wonton wrapper.
Moisten the edges of the wonton wrapper with a little water, then fold it into a triangle, pressing the edges to seal.
Arrange the wontons on a baking sheet lined with parchment paper.
Brush the tops of the wontons with olive oil or melted butter.
Bake in the preheated oven for 12-15 minutes, or until the wontons are golden brown and crispy.
Remove from the oven and let them cool slightly before serving.
For a vegetarian version, replace the sausage with sautéed mushrooms or crumbled tofu. You can also experiment with different cheeses, such as mozzarella or feta, for a unique flavor profile. If you prefer a bit of heat, add a pinch of red pepper flakes to the filling. These wontons can also be steamed instead of baked for a softer texture.