- In large bowl combine first 4 ingredients. With lightly greased hands form into 6 patties.
- In large skillet heat oil over medium heat; place patties in skillet. Pan-fry, turning once, until internal temperature reaches 165°F; on an instant-read food thermometer, about 8-10 minutes.
- Top burgers with cheese; cook until cheese is melted. Place burgers on buns. Top with tomatoes and avocado slices.
Makes 6 servings.
Serve with Mama Mia Steak Fries.
Make Ahead & Freeze: Prepare step 1. Place patties in a gallon freezer bag between sheets of wax paper. Seal well, label and freeze. Thaw completely. Continue with step 2.