Preheat your oven to 350°F (175°C).
In a large mixing bowl, combine the softened cream cheese, shredded cheddar, grated parmesan, chopped green onions, flour, and salt.
Using your hands, shape the mixture into small balls, about one inch in diameter.
Place the cheese balls on a lined baking sheet, leaving some space between them.
Using your thumb, gently press down the center of each ball to create a small well.
Bake for 15-20 minutes, or until the edges are golden brown.
Once baked, remove from the oven and let them cool slightly before adding the hot pepper jelly to each thumbprint.
Spoon the hot pepper jelly into each well, filling it generously.
Serve warm and enjoy the delightful blend of cheesy and spicy flavors!