Downscale, not that cheap but historic - Papoo's/Hot Dog Show. Have more than hot dogs. you could have a beer if you wanted.
Hugo's Taco's on Riverside a couple of miles west.
Viva Fresh at Riverside and Alameda - a few miles east. Decent Mexican, sit in the very back and watch the equestrians out the back windows. Been there forever.
Second the Poquito Mas and the rib place mentioned elsewhere here.
You know, with the exception of the $2 cheeseburger and fries combo, none of the other Happy Hour menu items are that impressive. Before they changed their pricing structure, it was great to get mussels, seafood chowder, etc. for $2. I paid $5 recently for the ahi tuna sliders combo, and got two half-dollar-sized fish cake patties wedged between two enormous slider buns. The ratio of fish cake to bun was easily 1:4. And I also received 3 whole french fries on my plate. Not very impressive. However the drinks are good there.
The Toluca Lake Numero Uno is a little better than average for LA deep-dish, but I don't know if it qualifies as "quick".
You have to order carefully at Taste Chicago, but you will be very happy if you stick to hot dogs and Polish, Italian beef sandwiches, garlic fries and the wonderful marinated fennel (and avoid pizzas and pastas). It's *very* quick, but seating can be tight at mealtimes.
603 N Hollywood Way, Burbank, CA 91505
Ditto on Portos and Poquito Mas. There's the Backstage Cafe in that's good for sandwiches and salads. Choza Mama has pretty decent Peruvian food. Corner Cafe has really good Mediterranean-style roast chicken, salads, and wraps. I love their roasted potatoes and hummus...you have to pick up a freshy baked chocolate chip cookie if you go. There's also Numero Uno pizza...deep dish style. If you're into burgers and stuff, there's always Big Boy's on Riverside.
3614 W Magnolia Blvd, Burbank, CA 91505
2635 W Olive Ave, Burbank, CA 91505
Choza Mama Restaurant
3121 W Olive Ave, Burbank, CA 91505
Numero Uno Pizza
4006 W Riverside Dr, Burbank, CA 91505
2520 W Olive Ave, Burbank, CA 91505
171 N Maple St, Burbank, CA 91505
We tried Mo's which was perfect. We had beers and sandwiches (grilled vegetable for me and turkey meatloaf for my husband) at the bar and were in and out in 40 minutes. Not fine dining, but a filling, quick, fresh quick dinner before the television taping. Thanks for the suggestion.