The Most Delicous Mexican Food Around! Delicias is a family owned and operated Mexican food restaurant in Ada, Oklahoma. The menu boasts traditional Mexican cuisine like enchiladas, quesadillas, fajitas, salads and other flavorful house specialties. Be sure to kick start your dinner with some of Delicias' complimentary homemade salsa and queso. When in Ada, drop into Delicias Mexican Restaurant for a festive and fabulous Mexican style dining experience!