What foods have you grown from scraps before or are doing so currently?
The ability to grow food from cooking scraps is literally mind blowing considering the amount tossed at every meal. Bell peppers or any plant where the seeds or tops are typically discarded provide a ready made source for one to grow their own foods.
Here are strawberry seeds recovered from the tops of strawberries that would typically find their way into the trash or compost bucket. I set the tops aside to dry out then came back and deseeded them. Now it will be to a wet cloth to see if I can get an adequate number to sprout and then plant in a garden plot.
So a reminder, any food where you would discard the seeds can possibly give you the chance to never have to buy them again. Other sources are potatoes, even pineapples!