Have you tried grass fed and/or organic beef? IMHO those taste like beef used to taste.
On the other hand, change of taste sometimes indicates a medical problem.
Are those usually more expensive? May be why I never try them.
Lately I eat a lot of lentils. They are so easy to cook and very good source of protein. I know because they cook so fast I end up burning them sometimes and the smell is just like when meat is burned. And They are still very cheap. Go great with Basmati rice and mango chutney.