Preheat oven to 350 degrees F. Spray a 9” round or square baking dish with nonstick cooking spray. Set aside.
In a large bowl, stir together cream cheese and spices until well combined. *You can microwave the cream cheese for 10-15 seconds to soften if necessary - just don't melt. Reserving about 1/3 cup of each, stir in the Cheddar and Pepper Jack cheeses until combined. Gently fold in corn, black beans, tomatoes, and green onions (reserve 1 tablespoon green onions for garnish). Sprinkle remaining Cheddar and Pepper Jack cheeses on top.
Bake uncovered in the preheated oven for 20 minutes. Or until cheese is melted and bubbly.
Garnish with reserved sliced green onions. Serve with tortilla chips.
*This will completely fill the dip, so if you’re concerned about possible overflow, use a slightly larger baking dish, like 11”x7”.