My new favorite Shabbat /Sabbath food

"Real Food" brand organic Corn Thins (popped corn cakes) with sesame
(They ain't kiddin' about the "thin" part--each cake is only about 1/4 inch thick.)

Australian hechsher (symbol of rabbinical supervision ensuring that a product is kosher)
Kosher Parve, Bishul Yisrail [sic]

The only ingredients are organic corn, sesame seeds, and sea salt (allergen warning: may contain traces of soy).

So these delightful puffed-corn cakes are not only slightly sweet--almost like a cookie without sugar--they're also completely free of anything even remotely resembling "mezonot." (And unlike some rice cakes, they don't fall apart at the slightest provocation, making them perfect for gluten-free, yeast-free nut-butter and jelly sandwiches. More on that later.)

After reciting what my rabbi says is the halachic minimum, namely, the brachot/blessings for Torah study (laasok b'divrei Torah, ha-m'lamed Torah l'amo Yisrael, and noten haTorah), the Torah quote (Y'varech'cha . . . ), the Misha quote (. . . ha-peiah . . . ), the Gemarah quote (. . . kibud av va-eim . . . .), and all three paragraphs of the Shema, I can now eat, before going to synagogue, a healthy "starch" (not junk food) that's neither bread nor "mezonot." (See here for previous "What may I eat?" discussions.)

(Actually, my usual practice is to davven/pray all of Shacharit/the Morning Service before eating on Shabbat/Sabbath or the Shalosh R'galim/Pilgrimage Festivals. After grabbing a bite, I then go to synagogue for the Torah reading and Musaf.)

In addition, I can eat these corn thins outside of a sukkah, since they're neither bread nor mezonot. (This is not necessarily a universally-accepted opinion.)

I found Real Food Corn thins at a good old Whole Foods health food supermarket. I hope you'll have good luck finding them, too. You might want to give them a try.