mmm-yoso!!!, a food blog, is being written by Cathy for the next few days; Kirk (and His Missus) are out and about, elsewhere.
Kirk visited Kotobuki in 2019, before Covid-19. It's in the same parking lot where La Miche Kabobgee had been and where Kahn's Cave Grill and Tavern still exists. This particular storefront had also been a Japanese restaurant, Wa Sushi.
There's plenty of parking on this end of the parking lot; the former Boll Weevil is closed.
The interior is spacious; there is only one waitress, so I think that is why they have limited seating.
Of course, we ordered hot tea ($2 each) and it was an excellent matcha, strong with a slight bitterness along with a slight sweetness. 
We decided to try the mixed tempura appetizer ($11). Properly fried, light, crisp and not oily at all. Potato slices, broccoli florets and carrot slices along with three large shrimp. This was a sizable appetizer portion we shared, using the house made, not salty tentsuyu dipping sauce. 
The Mister ordered the teriyaki chicken combo ($14) which came with miso soup. A better version-not watered down and containing thicker seaweed slices along with tofu cubes. Flavorful in a not-salty way.
The chicken itself was breast meat, so a tiny bit dry. The teriyaki sauce was house made and not sticky sweet; pleasant. The carrots and broccoli (same as from the tempura) were a nice side along with the rice.
I ordered the sashimi salad ($20) which had very fresh and fatty salmon, soft yellowtail and excellent tuna on top of greens (which included the thick seaweed that was in the soup) and a pleasant (again, house made) ginger-sesame dressing. An excellent lunch salad.
A great Japanese restaurant with only one waitress and two working in the kitchen along with a steady amount of to-go orders, so be patient; it's worth it.
Kotobuki 9340 Clairmont Mesa Blvd San Diego 92123 Website (858) 737-4267 Open Tues-Sat 11:30-2, 5-8 Closed Sunday and Monday
