If you cannot stand the taste of shepherds pie, there are two explanations.
1) You cannot cook. This has lead to you to making a watery mess and you going 'ewwww I made something badly!' then coping and seething about it. You need a good gravy and meat mix, with some nice vegetables, decent herbs stewed in for flavour. You need to be able to make a firm but still smooth mash, with the right spuds and a decentish layer of melted cheese on top. You need to be able to get the vegetables cooked but not mushy. These are easy, but you still fucked it up? How?
2) You are not white. AHAHAHAHAHAHAHAHAHAHAHAHAHHAAAAAHAHAHAHAHAHA. You got filtered by the basic footstuffs of humans. Go eat some dirt cookies, or curry shit sludge.