mmm-yoso!!! is being written by Cathy while Kirk and His Missus are catching up on missed vacationing.
Yes, I wrote about Elsa's Kitchen in 2007 and again in 2011, The Mister and I have been there many times since and here's another post. Elsa's survived Covid-19. 
Located in a nondescript strip mall with a nice sized parking lot at the NorthEast corner of El Cajon and 73rd, next to the gas station,
Elsa's Kitchen has been here since at least 2009.
You order and pay at the hole in the wall and soon your order will be ready.
The pastrami burger ($6.99)is hand shaped and char-broiled. I *love* the char broiled flavor. It's topped with a quality pastrami (not the pepper coated one; a regular smoked corned beef; the Liquor Store next door sells Boars Head deli meats and I think they get the pastrami there) and the usual toppings. Hefty and very, very good.
The bun is toasted, both on the top and inside, making for a non-soggy sandwich.
The large greek salad ($10.99) is a great meal. Plenty of gyros and very fresh traditional Greek salad- romaine, tomato, onion, cucumber and Feta, served with a really nice dressing and tzatziki. 
As always, a large order of onion rings ($3.99) was ordered. I have mentioned before that all Greek restaurants make wonderful, from scratch, thick cut rings from sweet onions. No exception here.
Elsa's Kitchen Greek and American Food 7022 El Cajon Blvd (619) 464-6711 Mon-Sat 9-9, Sun 9-8. (on our last visit, there was a window sign that it would be closed on Saturday and Sunday, so maybe call to check)