Baby Spinach Salad with Pumpkin and Feta Ingredients: Method: Cut the pumpkin into 1 inch sized cubes, dress with olive oil, salt and pepper. Preheat the oven to 360 °F and bake the pumpkin cubes for approximately 20 minutes. While the squash is roasting, toast the seeds,cut the cubes of feta and finely chop the onion. Mix up somewhere between 1/2 - 1/2 olive to pumpkin seed oil to 3/4 -1/4 depending on the intended flavor intensity..