6 cups mixed lettuce greens
3 to 4 tablespoons olive oil
2 tablespoons fresh lime juice
1 teaspoon Dijon mustard
1/2 teaspoon garlic powder
1/4 teaspoon ground cumin
1/4 teaspoon salt
1/4 teaspoon ground black pepper
Place lettuce in a large bowl.
In a jar with a lid, shake together remaining ingredients. Pour desired amount of vinaigrette over greens just before serving. There will be leftover dressing.