All you need:
3 medium zucchini, thickly sliced
8 oz crimini mushrooms, sliced in half
2 tablespoons olive oil
salt and pepper to taste
Toss everything together in a pie plate. Bake at 450 degrees F for 20 minutes. Toss gently, and return to the oven for about 10-15 minutes.
Make it even simpler and do it in your toaster oven, like me.
**For older babies, you can just do zucchini, blend it in the food processor, and mix it up with avocado and even a little wheat germ for a super nutritious meal!