Poor man's mushrooms

We joke around here about what the poor man substitutes for the more expensive things. I've used canned salmon to make Salmon Pesto Pasta (a delicious dish that Nona made for us a couple years ago). Nona uses salmon fillets and we do too, when we have them. But this particular evening, we didn't have a meal planned and Daddy was almost home. So, I cooked the pasta and dumped in salmon and pesto and served it. The only bad thing about it was that the salmon broke up into little pieces.
The other day, Katie was cooking and I taste-tested for her (we do it all the time around here). I was surprised because it tasted like mushrooms and I knew that we had used up the mushrooms in the fridge. Then Katie said that it was a eggplant tart with a potato crust. Now I guess the poor man has eggplant for his mushrooms!

Hannah