Okay!
Both Otto and Blue like Mint chocolate chip... mainly because I do. 
But, I feel like both of them have some sort of texture sensitivity with food, so they'd probably both hate pineapple pizza. I love it though. Blue is weird, but she thinks the pineapple makes the pizza slimy, so it's a no for her. She's kinda disappointed because it seems like something she'd like too.
Otto bakes and cooks obsessively. In terms of eating, he really goes for simple food that tastes really good. He likes Kimchi though. He makes it himself so that it's Kosher. He'll grill a cheese with it.
Blue loves the fancier stuff, food-wise. BUUUUUT, I regret to inform you that both her and I like those fried chicken feet they have at Dim Sum. 