Pre-heat the oven to 350°F.
Cook, crumble and drain the sausage.
Cut cream cheese and Velveeta into small chunks.
In a microwave-safe medium bowl, add cubed cream cheese, shredded Colby jack cheese, cubed Velveeta and Rotel tomatoes; microwave for 2 minutes.
Stir well, then stir in cooked sausage.
If cheese mixture is not completely melted at this point, microwave for another minute.
Scoop cheese and sausage mixture into phyllo shells.
Place shells on a non-stick baking sheet.
Place in the pre-heated oven and bake for 13 to 15 minutes.