I might not be much help. I have two fried pastured eggs with buttered toast almost every day, and raw milk and cod liver oil. I have found that a bigger breakfast keeps uncomfortable feelings at bay that otherwise hit mid morning.
A couple ideas:
toast with butter and peanut butter (fat and protein to satiate you)
toast with butter and then put a slice of cheese on, stick back in toaster oven to melt
toast with avocado, lime juice, salt and pepper
All of my ideas are on the medium of toast, lol. Do you like goat cheese? I saw a recipe on pinterest for goat cheese and avocado lightly mashed and then spread on toast. I'd of course add salt and lime.
I used to eat this for breakfast at work every day but it didn't fill up as well - plain yogurt with grape nuts stirred in. Yogurt never fills me up very long.
there are a lot of good ideas on this thread. if you can bear oatmeal but it doesnt fill you up, consider steel cut oats. 1/4 dry cup has 8g of protein. if i add nut butter, it fills me up for a good while. another thing you can consider is high-protein waffles or pancakes. we used this recipe as a starting point (we sub in whole wheat pastry flour for white flour, add peanut butter, sub something more high-protein for the oil, and so on... whatever you prefer) and they are pretty delicious. they hit the "carb craving" spot for me, but they stay with me longer than regular carb-tastic waffles.
yeah, i usually add a tablespoon or two and stir it in. it gets softer and kind of melty. i like it.
i also make a lot of high protein smoothies that fill me up. nut butter, greek yogurt, milk, ground flax, hemp protein powder and fruit. i can get like 35g of protein in a smoothie and be full for 4 hours! in case you can't tell, i am semi-obsessed with eating enough protein these days.