Make just enough of this recipe. Use the portion planning tool to calculate exactly how much of each ingredient you’ll need.Place the chicken breast in a bowl, add the salt, pepper, garlic, lemon juice and thyme. Mix well and let stand at room temperature for 5 minutes.Heat the grill or griddle to medium-high heat and rub with a little olive oil.Remove the chicken from the marinade and place on the grill or griddle for 4-5 minutes per side.Top with cheese. Cut the bun in half and grill for a few minutes until golden brown.Spread mayonnaise on both sides of the bun, add lettuce and tomato. Top with the cooked chicken and serve.