Preheat the oven to 325℉.
Combine the cream cheese, mayonnaise and Swiss cheese until well distributed. You can use an electric mixer, but a rubber spatula and a little elbow grease will get the job done just fine.
Mix in the green onion and bacon and place in baking dish. Top with the crumbled Ritz crackers.
Bake for about 25 minutes until the center is hot and bubbly. Serve immediately with crackers on the side for dipping.
