im craving that flavor and have tried making refried beans with onion powder topped with ketchup and it was pretty close to meat loaf but not quite i think it needed more fat. should i add butter or cheese what seasonings??
Add Soy Sauce for meat flavor and also add some tomato paste for meat flavor. You can also add anchovies if you eat them. This will do the trick.
add all three and you'll have 10 tablespoons of sodium in that beanloaf
MSG if you're not opposed. If you are, add natural sources of glutamate like Worcestershire sauce, parmesan, mushrooms, soy sauce, etc