Preheat oven to 375 degrees Fahrenheit (190 degrees Celsius).

Place the cottage cheese in a high-speed blender or food processor and blend until completely smooth.

In a large mixing bowl, combine the blended cottage cheese, buffalo hot sauce, and ranch seasoning mix until fully incorporated.

Fold the shredded chicken breast into the buffalo cottage cheese mixture until evenly coated.

Transfer the mixture to an 8x8 inch oven-safe baking dish and spread into an even layer.

Sprinkle the shredded cheddar cheese evenly over the top of the mixture.

Bake for 20 minutes or until the dip is heated through and the cheese is melted and bubbling at the edges.

Remove from the oven and garnish with sliced green onions before serving.