Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Season the chicken breast evenly with the sea salt, black pepper, and dried oregano.
Place the chicken on the baking sheet and roast for 18 to 22 minutes until the internal temperature reaches 165°F.
While the chicken is roasting, heat the olive oil in a small saucepan over medium heat.
Add the diced yellow onion and minced garlic to the pan, sautéing for 3 to 4 minutes until translucent and fragrant.
Add the dry jasmine rice to the saucepan and stir for 1 minute to lightly toast the grains.
Pour in the chicken broth and bring the mixture to a boil, then immediately reduce the heat to low and cover with a tight-fitting lid.
Simmer the rice for 15 minutes or until all the liquid has been absorbed and the rice is tender.
Remove the rice from the heat and let it sit covered for 5 minutes before fluffing with a fork.
Stir the fresh lemon juice, lemon zest, and chopped parsley into the rice pilaf.
Slice the roasted chicken breast into strips and serve it immediately over the warm lemon herb rice pilaf.