Good Breakfast Alternatives?

Oatmeal is definitely a better choice than most cereals because it is naturally low in sugar and high in fiber.
But if you prepare it with water it lacks protein.

I don't really understand why your parents won't buy more eggs and less cereal (cause a dozen eggs cost about the same as a cheap box of cereal).

oatmeal is just as 'carby' as cereal. cereal though, to me, is a waste of all those cals because there's little to NO protein, which is dumb for breakfast. Eggs (in my opinion) are cheaper than cereal -- cereal is ridiculously overpriced, I don't get why everyone thinks it's so cheap. You can get eggs - 18 (dozen and a half) at walmart for $2.48 -- Even if you have three eggs per serving that's 6 meals for under $3. Way cheaper than cereal since NO ONE follows the correct serving size of cereal - plus milk is expensive too - so cereal is wayyyy overpriced per meal...... Anyways, eat eggs.... protein shakes..... chicken breast....

ETA - the only time I eat oatmeal is when I add protein powder to it - but I don't use packets - I use old fashioned oats.... measured out.... and I use water, not milk.... I also usually add chia seeds and canned pumpkin.... along with some cinnamon, and vanilla protein powder. YUM!

Plain oatmeal. Add some blueberries or fruit of your choice to it

You sound like a very respectful son. I can relate to a mother who is offended if you don't eat her cooking. Breakfast should be a free meal though because you need to eat when works best for you and what will give you a great start for the day. Oatmeal with milk will give you a good amount of protein to help keep you full, but it is super high in carbs.

You could also try peanut butter on toast with an apple or greek yogurt with some granola thrown in for some decent protein. Mix it up!

I spend a total of $17 a week for breakfast.

3 Dozen Eggs - $1.75 ea dozen

12oz of bacon (12 1oz slices) - $4.50

1/2lb of Spinach - $1.25

10oz of Pork Sausage (no nitrates) - $4

6oz of Olive Oil - $2

That gives you 6 eggs per day, 2 slices of bacon or 2.5oz of sausage, and 8 leaves of spinach for your omelette or scrambled eggs. Breakfast is your largest meal of the day, and that fat is going to keep your full long past lunch. Eating the above and adding variations (Salsa, sriracha, green peppers, collard greens, chard, onions, etc.)

The above is only $2.42 per meal and you eat like a King, you can cook it up each day (alternating meats) or make it all at once and divide it out into refrigerated bags to eat at Lunch (like I do because I don't break my "nightly" fast until I am actually hungry to do so). That's only two hours at minimum wage (if you are on it), there is never a reason to not eat healthy in my opinion. Please resist the temptation to eat a tortilla or piece of toast with the above meal, those sugars (ie. flour) are only going to make you hungry in a few hours.

Total calories: 700-850 calories. For a smaller person you might use only 4 eggs (140 less cal) and only 1 strip of bacon (50 cal less).

i usually eat a banana and oatmeal (made with water) and add cinnamon + almond butter(protein +healthy fats!) to it

1/2 Cup of Egg whites, Cooked Vegetables (chopped tomatoes, diced jalapeno, chopped bellpeppers, red onion), 4-6 oz Ham Steak, 2 corn tortilla
breakfast of champions

I know you're trying to cut out carbs, but try pitas with peanut butter and banana slices inside. You can get like 6 pitas for 99¢ at the grocery store most of the time (look for the day old ones, they're the cheap ones). Or you could go without the pita and just put peanut butter on a banana. Gets kind of messy though.