You could saute a small batch of peppers for yourself, and let the DW "Have it her way".
For heat, add red pepper flakes. Texture, maybe sliced sauteed carrot or japanese peas al dente. Seeded tomatoe wedges may work too. If she likes the flavor, just not the thought of eating them, cook with the peppers then remove the ones for her dish.
I do 90% of the cooking in my house and got fed-up with "I don't want this or that", so I just cook what I want and the DW can pick it out.