Peel and mince garlic; mince anchovy fillets. Divide both evenly between two large bowls; set one bowl aside.
4 cloves garlic
4 anchovy fillets, packed in oil
Add beef, salt, and pepper to the first bowl with garlic and anchovy. Use your hands to thoroughly combine. Form into 4 equal-sized patties, place on a plate, and set aside.
1 ½ lb lean ground beef
1 tsp salt
½ tsp black pepper
Zest and juice lemon into the second bowl with garlic and anchovy. Add mayo and whisk to combine the dressing.
3 tbsp mayonnaise
Quarter and core apples, then thinly slice each quarter; add to the bowl with the dressing.
Fold kale leaves in half lengthwise and slice off the stems. Chop or tear leaves into bite-sized pieces, add to the bowl with the dressing, and toss to combine the salad. Set aside.
Preheat a grill pan, outdoor grill, or regular skillet over medium-high heat.
Once the grill pan is hot, coat with oil. Place burger patties on the grill and cook, undisturbed, for 5 minutes; flip patties, and grill an additional 3-4 minutes, until cooked through. Once done, transfer to a clean plate.
2 tsp extra virgin olive oil
Meanwhile, finely grate Parmesan.
1 oz Parmesan cheese
Toast buns on the grill pan (if desired).
4 whole grain buns or rolls
Place a burger on the bottom half of each bun; top with half the Parmesan and a small portion of salad. Close with the top half of each bun.
To serve, divide burgers and remaining salad between plates. Top salad with remaining Parmesan and enjoy!