Sasuke and salad
1. Black hair
2. Calm and cool
3. Smart
4. Uchiha
Naruto and burrito
1. Yellow hair
2. Has mustache since they were born
3. Jokers
4. Uzumaki
I'm sure he was talking about:
Attitude: Sarada is more socially open than Sasuke, and etc., Not going into this analysis
Sarada; Missing a parent
Naruto; Never had parents
- Relation
Boruto; Wants fathers attention
Sasuke; Wants father to acknowledge him
-Relation
And BTW; Sarada's inner monologue is anything but calm and cool, she talks exactly like inner Sakura. I don't have time for manga panels but she literally said
"Why does anyone want to become a ninja?! What's so great about being a ninja?! All I hear is ... Ninja, ninja , ninja??!?!"
Can you imagine Part 1 Sasuke saying this :lol
These two are obviously different from their fathers, but Sarada is getting more panel time so you can differentiate more on her right now.