I have 4 tips to make your kitchen greener, and you'll be happy to know they all respect the other green category – money.
1) Eat greener. The lower you eat on the food chain, the better it is for the environment. It simply takes more land / energy / water to grow a pound of beef than it does to grow a pound of broccoli or eggplant.
2) Recycle those table scraps, so you can turn them into compost. Get a small container with a lid, maybe even an old diaper pail, and keep all that old plant matter left over from preparing and eating a meal. No animal products. Just veggie scraps. Phase two happens out in the yard when you turn the table scraps into plant food by making compost.
3) Use non-toxic cleaning products. Your food sat on that counter, for God's sake. AND, vinegar and water and baking soda are much cheaper than the harsh chemical alternatives.
4) Avoid single use plastic whenever possible. Store your leftovers in re-useable containers that last for many years and save some dough. Plastic bags cost a lot over time.