Here's a few recipes not cooked in cast iron, because they aren't "cooked" at all.
Homemade salsa: Once you've tried it, you'll never go back to the jar. Tomato, onion, cilantro, minced garlic*, and 1/2 a jalepeno**. Mix in a blender.
*If it's raw garlic, cook it down first. Or just use the jarred variety.
**Less jalepeno for mild, more for spicy.
Add ranch to the salsa if you like.
Homemade guacamole: Again, you'll never go back to pre-made. Avocado, tomato, onion, cilantro, minced garlic. Mix in a blender.
Hummus: Chickpeas, tahini paste, a little garlic, lots of olive oil. Mix in a blender.
Milkshakes: milk, ice cream, nestle quik if you want it chocolate. Mix in a blender.
Smoothies: Ice, milk, and your favorite fruit. Ice cream optional. Mix in a blender.
Pesto: Fresh basil, olive oil, almonds, garlic, parmesan cheese. Mix in a blender.
Salmon spread: Leftover salmon, cream cheese, oregano*. Mix in a blender.
*Worcestershire sauce or liquid smoke, optional.
Ham spread: Leftover ham, cream cheese, oregano*. Mix in a blender.
*Again, worcestershire sauce or liquid smoke, optional.
Deviled ham: Leftover ham, dijon mustard, hard boiled eggs, oregano, cooked onions*, chicken broth. Mix in a blender.
*OK, the onions are cooked in cast iron.
Tuna or chicken salad: Tuna or cooked chicken, hard boiled eggs, mustard, olive oil mayo, pickles, cooked onions. Mix by hand or in blender.
Peanut butter and jelly sandwiches are also not made in cast iron, unless you want them grilled.
Now, items served WITH salsa, guacamole and hummus, ARE made on cast iron:
Cut up corn tortillas or pita bread in triangles, and lay them out on cast iron. Spray with olive oil pam. Into the oven at 250.