I try to do a quick pulverized shake: frozen pineapple (bromelain w/in good for what ails you), frozen cherries (anti-inflammatory), kale, spinach, celery or greeny extra (fresh ginger sometimes), fresh lemon. I fell off the wagon last night, but back in the saddle this a.m. with my juice. Hope this helps :)
I would be careful with raw spinach and kale if hypothyroidism is an issue for you, as these are goitrogenic and suppress thyroid function.
I don't like filling up on breakfast, either. I go for nutrient density in the morning instead of weight.
My ultimate "breakfast" is:
Whey (goat protein)
Coconut oil (refined, easier to digest)
Camu camu powder (natural vitamin C)
This is about
30 grams of protein, 15 grams of carbs and 10 grams of fat. Not to mention these are great sources of essential amino acids, methygloxly, collagen, saturated fats and nutrients.