Here's my piece of feedback.
Things I liked about the game:
-The name is a really nice pun, I love it
-The idea of feeding zombies different food with a shotgun is absurdly good
-The music of the game is amazing, even the cooking music
-The MetalGear-ish font for the title of the game, I love it (specially because the character looks a bit like Vulcan Raven)
Things I think that can be improved:
-When I first opened the game, Windows 10 (I imagine other Windows versions might do the same) thought it was a virus because it had no info on who developed the game, you might want to check that because it can scare some of the players.
-I understood what I had to do but not really how to do it. A little tutorial could help. It took me while to get out of the game to see if in the website you explained how to make the bullets. When I saw the video I understood the mechanic right away, but not the recipe. It's a bit hard (maybe it's just me) to see that the ingredients to make the bullets were the recipe, if you can make it a bit more clear it would be nice.
And finally things I didn't like about the game:
-There's no way to get out of the game. The first time I had to use the Windows key in the keyboard to open a different window to close the game (Maybe in windowed mode it would be easy to close it, I was playing on full screen) The second time I just left the desktop window open and I tabbed out of the game. That's the only issue I found in the game.
Bug:
-When I tabbed out of the game while I was in the cooking menu and tabbed back in, the battle music started playing with the cooking music. I closed the game, opened it again and it was ok.
Overall thoughts:
The game is really fun, I would love to see this game being more than a short project for the LudumDare. The difficulty of the game is fair and the learning process (when you finally understand what to do and how to do it) is really smooth, after level 5 I kinda remembered the recipes so making the bullets was faster and funnier.
Keep it up lads, you're making an amazing job.
(If you need any more feedback you can contact me at my twitter @alphonsemcsteel )