I found five Mexican or Tex-Mex restaurants with current evidence of operation at Tullahoma addresses. The available sources do not support listing eight to ten without including a nearby-town business, a national chain, or an entry that may be outdated; notably, listings conflict about the restaurant at 1905 N. Jackson St.
The list
1
Camino Real Mexican Restaurant
1050 N Jackson St, Tullahoma, TN 37388
Camino Real is a Mexican restaurant on N Jackson Street. Reviewers often praise its salsa and fajitas, and also mention friendly service and generous portions.
Casa Mexico is a Mexican restaurant and bar-and-grill on N Jackson Street. Reviews mention quick service and hot meals, as well as salsa and a broad menu.
El Costal is a family-owned Mexican restaurant and grill at Suite 800 on N Jackson Street. Its website describes it as serving traditional-style Mexican food, and customer reviews mention street tacos, margaritas and quesabirria.