This is a hit in my house, although we use black lentils instead of black beans most of the time:
https://www.weismarkets.com/recipes/pomegranate-mango-black-bean-salsa/24898
That plus cheese and crackers is a nice dinner.
If that's too much (we all have those nights), mixing a can or bag of cooked lentils with a jar of salsa is a super fast salad that is also very nice with cheese and crackers, or there are some delicious lentil soups you can buy and serve with cheese and crackers.