The black beans I would either eat with rice or make refried beans for my husband. I wouldn’t eat 4 cans all at once, but within a couple weeks they would be gone. For refried beens you just mash up the beans very well with the liquid it comes in (sometimes I use one of those hand mini blender thingies, sometimes a potato masher) add a little oil to a pan, some chopped onion, sautee a minute, then add the mashed beans. Cook on medium for several minutes moving them by stirring the edges to the middle and the beans on the bottom to the top. You can use them as a side dish, with tortilla chips, or in tacos.
My MIL makes incredible frijoles charros with black beans. Basically a bean soup. Mine never comes out like hers, but basically it is the beans, onion, tomato, bacon and bacon fat, and fresh jalapeño, salt to taste (you probably won’t need salt with canned beans). If you look up frijoles charros it probably has some recipes to follow.
The diced tomatoes, if I didn’t use them in the frijoles charros, I would make some pasta sauce or I would make chicken cacciatore or something similar. I like canned tomatoes, green pepper, mushrooms, onion, chicken thighs, a dash of cinnamon, a dash of nutmeg, and salt to taste. I cook it right on top of the stove, and then put it over pasta.
Another chicken dish is can of tomatoes, half an orange squeezed, and half a medium onion blended in a blender. Also on top of the stove with chicken thighs (some people prefer legs or wings) salt to taste. Over pasta also.
Kidney beans I rinse and drain and use in salads, or mix with chick peas and celery add dressing similar to a three bean salad and eat as a snack or with salad.
The jalapeños you can use on nachos and tacos.