How to Make It
Combine chicken, 2 tablespoons lemon juice, 1 teaspoon oil, and garlic in a zip-top bag; turn to coat. Let stand 5 minutes.
Heat a grill pan over medium-high heat. Coat pan with cooking spray. Remove chicken from marinade, and discard marinade. Sprinkle chicken with 1/4 teaspoon salt and 1/4 teaspoon black pepper; grill 6 minutes on each side.
While chicken cooks, heat rice according to package directions. Combine remaining 2 tablespoons lemon juice and remaining 2 teaspoons oil in a bowl, stirring with a whisk. Add rice, remaining 1/4 teaspoon salt, remaining 1/4 teaspoon pepper, feta, and basil; toss. Serve rice with chicken.