Rinse the jasmine rice under cold water and combine with 0.5 cup water in a small pot; bring to a boil, then reduce heat and simmer covered for 15 minutes.
While the rice cooks, dice the cucumber, cherry tomatoes, and red onion into small pieces.
In a small mixing bowl, toss the diced vegetables with lemon juice and fresh parsley to create a crisp salad.
Heat the olive oil in a skillet over medium-high heat and add the ground beef, breaking it into small crumbles with a spatula.
Season the beef with sea salt, black pepper, dried oregano, and minced garlic, cooking until the meat is browned and fragrant.
In a separate small dish, whisk the Greek yogurt with a tiny pinch of salt until smooth.
Fluff the cooked rice with a fork and divide it into serving bowls.
Top the rice with the savory ground beef, the fresh vegetable salad, and the crumbled feta cheese.
Finish the bowl with a dollop of the yogurt sauce and serve immediately.