What is it about food served in canning jars? Sure, we could use a plate and scoop ourselves a portion like normal adults, but where's the fun in that? Besides, packing food in jars or baking directly in them makes dishes easy to transport and mess-free. Sounds good to us!
A canning jar is essentially a ramekin. Anything that you can bake in a ramekin can also be baked in a canning jar, with the added advantage that you can screw a lid on a canning jar and take your food with you!
1. Salads - From grain salads and fruit salads packing it in jars is an easy way of passing out portions at a picnic.
2. Cupcakes and Quick Breads - Jars keep the crumb-factor to a minimum (plus help us with portion control). You can bake them right in the jar or portion them afterward, like these cute Red Velvet Cupcakes from Eat Drink Pretty.
3. Cobblers and Pies - Fruit on the bottom, pastry on top. Entirely delicious. Not Martha has tutorials for both the cobbler and the pie version on her website.
4. Puddings, Panna Cottas, and Mousses - We usually portion these into ramekins anyway. Butterscotch pudding is a favorite, but honey lavender panna cotta sounds perfect for an outdoor party.
5. Egg Dishes - Frittatas are baked in the oven, right? Portion the egg mixture into ramekins instead and we have brunch-on-the-go.
6. Casseroles - Think mac n' cheese, mushroom casserole, or even individually portioned panade.
7. Full Meals - That idea for a BBQ meal in a jar might be on to something. Rather than packing lots of tiny containers, why not put the whole meal in a larger canning jar?
What other dishes do you think work well "in a jar"?
Related: 10 Pieces of Inspiration for Planning Your Summer Picnics
(Images: Not Martha, Country Living, and Giver's Log)
Martha Concrete Lam...

Here's another one for cookies in jars...with a vegan option too.
http://www.atthefarmersmarket.com/2009/12/coco-loco-cookies.html
Rillettes is by far the best food in a jar! Jarred Meat! And French & Fancy at that.
We swear by Weck canning jars for picnicking. (You can buy plastic snap-on lids in addition to the glass/rubber gasket lids used for actual canning.) They're durable and surprisingly elegant even on an uncovered state park picnic table. We use them for everything: pasta salads, cole slaw, barley water (we use the juice jars for that), even a day's worth of cookies.
Soup! Glass is great for reheating things in the microwave.
I also find jars ideal for fresh fruit tossed in sugar and generously covered in cream. *nom*
Cheesecake!
I wonder if www.foodinjars.com has seen this yet? Brilliant!
Not sure if this is even a relevant question. But while in a department store in Paris a few weeks ago, I discovered Le Creuset's 'mini-cocottes' and the rather delicious looking book that went along with them. We nearly bought a set, but the price (not to mention getting them home to Cologne) put us off a little... I wanted to be able to experiment with the recipes first before committing to MORE dishware...
Would canning jars work as an adequate substitute?
Pollyanna-
Where can you buy these snap-on lids online?
THX!!