Although there are some varying schools of thought regarding this, there is gluten in corn too ... granted it is not the same type of gluten as wheat, but it has gluten in it nonetheless. For some of us (Celiacs, and those who are gluten sensitive) it is better to avoid all forms of gluten, which obviously covers wheat, but also rye, barley, millet, sorghum, quinoa, white and brown rice, corn and oats.
Tortilla chips are also usually cooked in various vegetable oils that are high in PUFA's ... toxins that we want to avoid ! And then there is the fact that a lot of the corn has been genetically modified, and the fact that tortillas and chips are processed foods, they are not in any shape or form Paleo.
I have to say, I'm hungry now for roasted veggies after reading your meals ! Keep writing down everything that you eat, and make notes on how you are feeling, especially if you slip up on non Paleo/Primal foods ... I have found that the cleaner I eat, the less issues I have with digestion as well as joint and muscle aches and pain.
I'm halfway through my first round of Whole30 and although I had little to eliminate, it has made an astounding difference in how I am feeling as well as how my body is responding with fat loss, strength gains, energy, etc.
Don't buy any tortilla chips, so there's none at home or work to munch on ... and avoid them if you are out and about ! NO more tortilla chips ! Ah, a new mantra for you ... grinning, NO more tortilla chips !