This meal is fast.
Pop open a bag of tortilla chips. Heat up 2 or 3 cans of beans, add seasoning if you like. Serve at the table with grated cheese, sour cream, salsa, lettuce, onion and anything else you can find. May God bless you with avocados on sale, which indeed just happened to me. OH, yes, cilantro–if there is any way you can get fresh cilantro, please do!
Kroger makes a bag of tortilla chips (with no trans fats) for $1.19. This works great for one meal for us. A can of beans costs between $.70 to $.80. Add in salsa, and cheese and this meal still can squeak under the $6 range.