I normally don't eat breakfast, what's the fastest breakfast I can make home?

@st476 that looks like the best breakfast ever! I'm going to have to give that a go!

I make a batch of hard boiled eggs at a time (7-8) every week or so and have one each morning. I also cook quick cooking oatmeal (its comes in the big tubs, not the individual packages with the different flavorings). I add cinnamon to it to give it some flavor. All in all, I am done with breakfast in about fifteen minutes.

Once a week make a big batch of egg muffins with sausage and veggies. You can also do breakfast burritos. Wrap me up and pop them. In the freezer and take them out as needed. Lots of ideas on Pinterest.

Before anything, I would first ask you, what are your goals/purpose for training @gabiruchi ?? (Health concerns? Fat loss? Playing a sport that requires increased performance?)
Your trainer has a point to an extent. IF you feel sluggish during workout, then yes you may want to eat something a bit before your training session. There is intermittent fasting, which many of my clients as well as myself utilize in order to break into our stored fat cells by having that state of depletion. Some people feel good eating 2 or 3 times per day, where as someone else may eat 5 or 6 times. Depends on YOUR preference, your goals, and your schedule.
If eating more calories around your lunch works for you because of a strenuous morning workout, do it! (Just Track, track, track those calories) Maybe a bigger dinner is ideal for you because you tend to be really hungry late at night and this helps curb your appetite.
*Many people that don't track cals (macros) dont eat enough. They are used to eating a certain way that over time, their body adapts to the routine and they plateau.*
If not used to eating breakfast, don't go big! Baby steps to consistency. Try a protein shake and a banana if whole foods make your stomach uneasy because it's just to much. Prepare ahead is key to success! Make small to-go meals/snacks the night before.
Many of my foods I eat were already mentioned in above comments... protein shakes, protein bars, yogurt, cream cheese, cereals, milk, granolas, almonds, Quick oats oatmeal, toast with peanut butter, eggs, bagel, don't forget WATER.<water is crucial for many bodily functions...muscle stores, organ function, digestion, body temp, fullness.
If you have more time in the morning, I love making Protein pancakes. Mmmm pancakes lol.
Afternoon snacks I'll make wraps. Chicken breast wrapped inside a tortilla with avocado and some sour cream. (iifym lol) Perfect on the go snack that provides me with my protein, carbs, and good fats from avocado.
There is also a good amount of fiber which helps keep me feel full longer.
Eat toward your goal, no matter what it is. A long distance runner isn't going to have the same nutrition plan as a bodybuilder because the goal and energy requirements are different.
You got this! Stay focused, stay positive!
-John A.

I eat instant oatmeal, Monday - Friday. Grab 2 packets and head to the office. Make it and eat it at my desk.

An apple.

Breakfast isn't for everyone. It's weird to me that your trainer doesn't know that.

Make up some "hardy" breakfasts to freeze on the weekend. Then pop them in the fridge the night before to thaw overnight. Zap 'em in the morning.

I make a potato (hash brown), sausage, and egg white breakfast - mixed altogether like a hash. Freezes well and tastes great!

Do some meal prep on Sundays and make breakfast for the week. I use a lot of Fit Men Cook recipes for all meals. They have some excellent breakfast muffins, casseroles and egg dishes you can make in advance.

Are your workouts in the morning? Is your trainer expecting you to eat before or after working out? I workout first thing in the morning, no eating before, just a little sip of water. I don't eat until about an hour and a half later or grab something and go. I always have coffee while getting ready for work though. Do you have morning coffee? You could just make your coffee more caloric and skip breakfast or grab a bar or banana and Greek yogurt.

You don't necessarily NEED to eat breakfast but there's no harm in trying it out and seeing if it results in positive changes for you. I find I have more energy if I eat a small breakfast, and I definitely need to eat something before I workout. Here are some breakfast ideas:
* Hard-boiled eggs. Not the most amazing thing ever but I make 6 at a time and have two for breakfast each day, with some fruit.
* Yogurt with fruit
* Mini quiches...sounds like a pain BUT all it really requires is making a mix of eggs, veggies (I use bell pepper and onion), a splash of milk, and some spices all in a bowl. Prep a muffin pan and fill each one with the mix. Bake. Now you have breakfast for a week!
* Instant oatmeal. Sometimes I'll make a trail mix of dried fruit and nuts. I'll throw a little of that into the oatmeal, along with a sprinkle of cinnamon.
* Cottage cheese & fruit. OR cottage cheese with cinnamon and a touch of honey
* Toast or english muffin. Sometimes with peanut butter, or peanut butter and bananas, or honey, or jam

If I'm in a huge rush, I might just grab some pieces of fruit and some nuts and snack in the mornings at work, instead of having a whole meal. Or I'll stop by a gas station and get a bar (my favorites are Powercrunch, Kind, and Larabar).