Scallion Dip

I've made this about 2-3 times, and everytime, people LOVED it!

Ingredients:
4 cup sour cream
2 teaspoon cumin
2 teaspoon paprika
2 teaspoon chili powder (optional, I always omit this because I don't like spice)
Juice of one lime
6 chopped green onions
Salt and freshly ground pepper

Directions:
In a large mixing bowl, mix ingredients together with half of the green onions. Top with remaining scallions and serve with Tortilla Chips.