1. Preheat oven to 350°F.
2. Drain corn, green beans and green chilies.
3. Cut cheese up into smaller pieces.
4. In a medium saucepan, combine all ingredients and cook over medium-high heat until cheese is melted. Stir frequently.
5. Once the cheese is melted, pour mixture into a greased casserole dish and bake for 20-25 minutes, until cheese is bubbly.