During busy weeknights, we can’t get enough of quick, easy, and cheap dinners. With only 5 ingredients and less than 30 minutes, these black bean tostadas will have you serving up an easy and delicious vegetarian dinner on the table with hardly any work at all. These tostadas use ingredients you’re more than likely to have on hand, making them the easiest last-minute meal to throw together when you just can’t be bothered to cook up anything else. The best part? Because of their simplicity, these tostadas are endlessly versatile. Make them as-is for the most basic version, or use them as a base to add all your favorite seasonings and toppings.