In a small dry skillet, toast the sliced almonds over medium heat until golden and fragrant, then set aside.
Season the chicken breast with sea salt and black pepper.
Heat the olive oil in a medium saucepan over medium-high heat and sear the chicken until browned on both sides and cooked through, then remove and slice into strips.
In the same pan, add the diced onion and sauté for 3 minutes until translucent.
Stir in the garlic and dry basmati rice, toasting the rice for 1 minute while stirring constantly to coat in the oil.
Pour in the chicken broth and bring to a boil, then reduce heat to low, cover, and simmer for 15 minutes or until liquid is fully absorbed.
Fluff the rice with a fork and stir in the lemon juice, lemon zest, fresh parsley, and the sliced chicken.
Garnish the pilaf with the toasted almonds and serve immediately.