Cook the breakfast sausage in a skillet over medium heat until browned and fully cooked, then drain the excess grease. This step ensures your dip won't be overly greasy and allows the sausage to develop rich, caramelized flavor.
Transfer the cooked sausage to your slow cooker and add the cubed cream cheese, undrained diced tomatoes with green chiles, drained corn, chopped jalapeños, shredded cheese, and all the seasonings. Stir everything together to combine.
Cover the slow cooker and cook on low for 2-3 hours, stirring once or twice during cooking. The dip is ready when all the cheese has melted and everything is hot, creamy, and well combined.
Give the dip a final stir, switch your slow cooker to the "warm" setting, and top with sliced green onions. Serve immediately with tortilla chips, crackers, or toasted baguette slices for scooping.
Notes
For extra spice, keep a few jalapeño seeds in the dip as they add heat without overpowering the other flavors.
Using block cream cheese rather than spreadable cream cheese creates the smoothest, creamiest texture.
Keep the dip on "warm" during your party, so it stays perfectly creamy and easy to scoop throughout the event.
If the dip seems too thick after sitting, stir in a splash of milk to thin it to your desired consistency.