Tortas Sinaloa, 2252 S. Euclid Ave. (at Philadelphia), Ontario; also at 9765 Sierra Ave., Fontana; 1520 W. 6th St., Corona; 1497 Mt. Vernon Ave., Colton; Baldwin Park; Santa Ana; and Tijuana

At loose ends for lunch Wednesday, I headed south on Euclid from downtown to see what I might find. In a shopping plaza with a Food 4 Less on the southwest corner of Euclid and Philadelphia, I found Tortas Sinaloa, which beckoned with the promise of a cheap, filling meal.

Walking through the doors was a “wow” moment. The space has unusually high ceilings and is cavernous, encompassing what were probably two adjacent storefronts originally. Three giant murals fill one wall, with a fourth mural on another. There’s plenty of seating, the tables placed far apart. The first impression is that it’s quite an operation.

The menu has 60 tortas from $2.50 to $5.99. These are grilled Mexican sandwiches, for the uninitiated. A large variety of juice drinks, licuados and smoothies are offered. The menu is in Spanish, which poses a challenge, but the two servers I talked with were bilingual.

I went for a Fontana sandwich ($5.95): carne asada, avocado, cheese, mayo, lettuce, tomato, onion and refried beans, and a strawberry-pineapple-papaya smoothie ($4.25). The drink came in a mug 7 inches tall, so they didn’t skimp. The sandwich was delicious, rivaling the ones at Los Jalapenos in Rancho Cucamonga, my favorite. But the choices are far more limited there.

Tortas Sinaloa has other locations, including Tijuana, but the main office is Ontario, according to the menu.

Plenty of light comes through the expanse of windows. The tables are decorated with fruit art and the shelves behind the counter are stocked with fresh fruit. It’s a neat atmosphere that offers one of those pleasant am-I-in-Ontario moments. It just goes to show, if you go searching and keep an open mind, there’s no telling what you’ll find.