Meal plan based on a dubious understanding of nutrition and archeology
15A
Insignificant ... or a meal to eat while fasting?
17A
Processed, as coffee beans
18A
Singer LaBelle or Smith
19A
Appear
20A
The end of a belief system?
23A
"Star Trek" speed
24A
"___ enough" ("I learned my lesson")
27A
"To Kill a Mockingbird" author
28A
Insignificant ... or drinks to go with 15-Across
32A
Publisher of the DSM-5 (which added Prolonged Grief Disorder in its March 2022 update)
33A
Show contempt for (unless you're into the British punk scene, then: Show appreciation for)
34A
Ottoman governors
36A
NYC show since 1975
37A
Common site for shingles
41A
Its official languages are Hindi and English
43A
She played Daenerys on "Game of Thrones"
45A
Insignificant ... or a side dish to go with 15-Across
48A
Heated mirrors or steering wheel, say
49A
Many an interstate: abbr.
50A
Clip-___ (some sunglasses)
51A
Retail activities
52A
Airport org. with fetish for shampoo and nail files (apparently)
Down
1D
Things exchanged at the altar
2D
Really love
3D
From head ___ (completely)
4D
Final washing machine cycle
5D
Disadvantages
6D
HS math class
7D
"I need new ideas for the ___. I want you to go to the dump and bring back a magazine clipping." (Charlotte's command to Templeton. And also every blog writer's command to their readers.)
8D
Gazpacho, e.g.
9D
A lot of hot air
10D
Computer science dad joke: What is Winnie The Pooh's favorite data structure? (Sorry not sorry)
11D
Candy-cane features
14D
Illustrate
16D
Reason gone mad, according to Groucho Marx
21D
Begin, as winter
22D
Christmas decoration
25D
1980s gaming console, for short
26D
When doubled, Ben Kweller debut album
28D
Maker of Oreos and Mallomars
29D
Target for a quarterback
30D
Intuitive abilities to assess the sexual orientation of others
31D
Bit the dust
35D
Farm feature
38D
Up in the air
39D
Measure of success on YouTube
40D
Low-effort college course
42D
Mont Blanc and the Matterhorn
44D
Provides a crew
46D
Grade school support org.
47D
It eliminates mechanical friction, but creates multinational friction