Side salad good enough

Is eating a caesar side salad with fat free dressing and croutons good enough of a meal to eat before a heavy cardio workout. When I get out of work all I have time to eat is a small salad because I have to get to the boxing gym. Plus when I have a heavier meal before boxing I feel like crap.

In case it matters I'm eating 5 other meals a day (6 total) and downing 5L of water a day. I also have a gut I'm trying to lose.

Protein intake is roughly 255g daily carbs is anywhere from 100-115 g daily

Diet is something like this:

Breakfast 5:30 am
A bowl of keto rice krispies (21 g protein 4 g carbs) with skim milk
1 cup of green tea

Brunch 8:30 am
Tuna with fat free mayo

Lunch 11:30 am
1 chicken breast with BBQ sauce
1 vegetable serving either peas,green beans,brocolli,asparagus

Dinner 3:30 pm
1 caesar side salad with croutons and fat free dressing

Post boxing training meal 6:30 pm
1 chicken breast (5 days a week mon/tues/thurs/fri/sat)
OR
1 rib eye steak with steak sauce (2 days a week weds/sun)

1 vegetable serving either peas,green beans,corn,brocolli,asparagus

Post lifting, running workout/bedtime meal 10 pm
4 egg whites (no yolks)
Protein shake with skim milk

Well what do you guys think?

You had asked about your diet in another thread, and I responded there, you may want to check it out.

My answer to your question here is the same as my comment in the other thread, which is that a salad of all things w/fat free dressing is a horrid choice for a meal. No protein at all, and a sugar laden dressing.

Not for me.

~SC~