In a skillet over medium heat, cook and crumble the sausage until browned and fully cooked. Drain any excess grease.
Transfer the cooked sausage to a 3-4 quart slow cooker.
Add in cream cheese, diced tomatoes with green chiles, corn, chopped jalapeños, 1 ½ cups Monterey Jack cheese, garlic powder, onion powder, smoked paprika (if using), salt, and pepper. Give it a gentle stir.
Cover and cook on low for 2–3 hours, stirring once or twice during cooking, until the cheeses are melted and the dip is creamy and hot.
Stir again, switch to the warm setting and top with the remaining Colby Jack cheese. Cover again and allow the cheese to melt. Then top with sliced green onions.
Serve with tortilla chips, crackers, or toasted baguette slices.
Notes
Please refer to my FAQ’s (Frequently Asked Questions) and ingredient list above for other substitutions or for the answers to the most common questions.