Famous as the city of "eat 'til you drop," Osaka brings in delicious foods from across the country. Osaka is also a merchant city, so prices are strict. This means the city is full of cheap and delicious shops. Osaka people are also said to be "irachi" in the local dialect (meaning "hasty" or "impatient"). Maybe that's the reason why there are so many ways to casually grab a bite to eat, like take-out options.
There are money-saving coupons in the article below, too!

Daikisuisan-Machi-no-Minato-

Fish procured from ports around Japan here are at the height of freshness. There is an eat-in counter inside the shop, which is always lively with people. This sushi shop's specialty is its Pacific bluefin tuna sashimi, made fresh from a deftly trimmed whole fish.
Take-out is also available.

Bubu-tei

At Bubu-tei, visitors can sit and enjoy Osaka's famous takoyaki at their leisure. Enjoying some of them hot with a beer is a good choice, too! Try having your takoyaki together with Akashi City's famous "akashiyaki." The batter in akashiyaki contains more egg than takoyaki, and is much fluffier and lighter cooked. Akashiyaki is also eaten not with sauce, but dipped in a broth. The eggy flavor and broth make a wonderful combination.

TSUKEMEN TETSU

"Tsukemen" is a beloved style of ramen in which noodles are placed into a separate bowl of thick, hot soup. At TETSU, you can enjoy thick, chewy flour noodles with this sop. The shop's specialty is its slightly spicy Tan-Tan noodle dish, served only at the HANKYU SANBAN GAI shop. The rich soup is wonderful with its sesame fragrance.

Shabu-sai

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Horiuchi Fruit Farm

Run by Horiuchi Fruit Farm, this café serves dishes based on extremely high quality fruit. The fruit sandwich is bursting with fruit pieces from end to end! In the shop's smoothies, their take on Osaka's famous "mixed juice," there is neither water nor sugar, and instead they're simply packed with the original flavors of the fruit. First try just the fruit part, and then enjoy the change in flavors when you mix in a bit of the cream on top!
There are also some incredible deli sandwiches with combinations of sweet fruit and roast beef. It's a great shop to get better acquainted with some delicious fruit.

CHEDI LUANG

Our traditional Chiang Mai-style food is healthy and delicately flavored with herbs and spices, and uses plenty of vegetables and khantoke-style glutinous rice. Chedi Luang carefully selects all of its ingredients. Enjoy an authentic Thai buffet in our resort-like, Thai luxe-style interior at lunch, and at night, enjoy our tom yum soup with homemade noodles on the terrace.

BECO

INABA WAKO

Tonkatsu, made from thick slices of pork, deep fried to crispiness. INABA WAKO uses no pre-frozen meat, so you can enjoy the difference of the true savory flavor and soft juiciness of its tonkatsu.

Kappo-Soba Kanda

Kanda's soba (buckwheat) noodles are made using buckwheat from Hokkaido, according to the principal of "grinding that soba for that day, and then enjoying flavorful noodles."
With a tradition of 25 years in Chayamachi, Kanda offers excellent a la carte traditional Japanese dishes at reasonable prices.
Kanda is perfect for parties, with four private rooms and veranda seating with a Japanese-modern style furnished with recycled materials.

VIE DE FRANCE

Enjoy truly French flavors at VIE DE FRANCE, whose shop interior, modeled on a Parisian corner bakery and café, fills with the aroma of freshly-baked bread. There's also an eat-in corner where visitors can enjoy freshly baked bread with drinks. Luckily for visitors, it's also open early in the morning!

*Information in this article is accurate as of the date of posting. There is a possibility that details regarding these products and services have changed, or that some shops have since closed.