Most filling food, with the least amout of "crap"?

Cous cous and spelt are delicious when mixed with vegetables (i steam vegetables and add cooked cous cous or spelt - yum!)
also brown rice or rice crackers
grilled chicken/tuna
it depends what kind of food are you looking for
bananas are quite filling also

That depends on what your definitions of "crap" and "bad for you" are.

Raw and unsalted nuts and seeds: walnuts, almonds, pecans, pumpkin and sunflower seeds, etc.

I think veggies are going to be one of your best options if you need a high volume/low calorie option. Maybe you should try eating more fat and protein with your choices, because no one should *need* to eat every hour or even every 2 hours. Maybe you are confusing non-hunger signals with hunger signals, or maybe you would be more satisfied if you simply ate more food at one time and just ate less often. I used to have days wehre I felt like I was always hungry, but that was when I was eating many small meals. I decided to try something different and now I have about 2 big meals a day and 2 snacks or so and I stay satisfied all day and the feeling like I'm starving never really happens anymore.

It depends on your goals, like how many calories you are allotting for it, how frequently you'd like to eat, how many calories/fat/etc you're willing to eat at a time.

I find that if I eat a breakfast that is 500+ calories, most of which come from fat/protein, I'm good to go for most of the day. My lunch can be light, veg and a little protein, a snack of nuts, and a normal dinner. I'm not starving, and I don't have to eat all day.

So to answer your question:

Omelet with 3 eggs (or 1 egg, 1/2 cup whites only) a tsp of coconut oil, a cup of chopped veg, and maybe 2 slices of bacon, ham, or some cheese, and some avocado.

Tuna Salad on cucumber chips and red bell pepper strips

Protein Shake with nut butter, almond milk, protein powder, cup of spinach, cup of frozen fruit, maybe a couple tablespoons of flax seed

Chopped cooked chicken breast mixed with a smashed avocado and salsa on a whole wheat tortilla or two

If I eat this kind of thing I'm not hungry for awhile, my snacks are usually an ounce of nuts, something like that, hope this helps!

Do you like almond milk? There's a 30 calorie per 8 oz kind. Maybe having some liquid in your stomach will help with hunger

I add spaghetti squash to many things that I have. Chili. Soups. Taco salad.

Protein. I like boneless, skinless chicken breasts and hard boiled eggs for filling and nutritious protein sources.

This is spot on.

I do egg whites out of a carton in a van down by the river

lately, i have been eating just a tablespoon of almond butter. may not sound appetizing but it fills me up and it helps with those pesky sweet/salty cravings that i get around 3pm.