The Food Run

This will be the last achievement you unlock in the game, since you'll make progress towards this while working on all other achievements. This is a ridiculous amount of food for this achievement. To put it in perspective, I played through the game normally (without a guide) so it took me a few tries on each level, and then after I three-starred every level, I replayed them to document the solutions. Even with all of that, I just reached 2500 food eaten when I finished the game and unlocked all cumulative achievements. So if you use all the level solutions for three stars and the miscellaneous achievements, expect to be below 2000 food eaten when you finish. This means you'll have a ton of food to grind out.

By far the best level for this is level 8-1. Using the level solution in the Written In The Stars (200G) achievement solution, you can collect the 58 pieces of food very quickly. Then just retry the level and repeat. You will have to play this level a lot to get the thousands of food you need, so be prepared for quite a bit of grinding. Assuming you're around 2000 food eaten, that's around 140 times you'll have to play through this level. Thankfully this level only takes 20 seconds or so, and restarting is almost instant, so it won't take too long. Just be prepared for some mindless grinding.