I pulled out 4D Mouth-puckering green drink: LIMEADE because I haven’t had limeade in a long time, but I used to have it in summertime, and I like it way more than I like lemonade. I don’t know what it is about the drink, but I find it to be way more refreshing. Why is it not as popular as its yellow brother?

Theme!

20A Hoped-for experience at a casino: STREAKOFLUCK.
28A Sprinkle often paired with salt: DASHOFPEPPER. I made latkes last night and tonight. I made the recipe last night, though. Cooked more today. Anyway, I added salt and pepper, but I feel like I could have done more pepper. It would have benefitted from more pepper.
45A Fashion designer’s purchase: BOLTOFFABRIC. Just like how fabric is sold in bolts and there are bolt ends that are sold for less as scrap, that’s how I get my pieces of wood for my woodworking projects! But scrap from the hardwood store. Not from the fabric store.

54A Early advantage … or what 20-, 28- and 45-Across each have?: RUNNINGSTART. Streak, dash, bolt.

Finished this one in 4:55.