Here's a quick, one-pot meal that makes the most of spring greens: asparagus, two types of sweet pea, and mint all get folded into a delicious dish that pops with the flavors of lemon and feta and the crunch of pumpkin seeds. Serve the dish hot or cold, as a side dish or main dish, and vary the veggies according to the season: make it with tomatoes, corn, and basil in the summer, or with winter squash in cold weather -- just be sure that everything is cooked before you add the couscous, as this is a more-or-less instant grain.
In a medium-sized pan, heat the butter and 1 tablespoon of the olive oil over medium heat and sauté the shallots with 1/2 teaspoon salt until they are just starting to brown, around 5 minutes.
Add the asparagus, snap peas, and peas, and stir just to coat them with oil, then add the broth, raise the heat, and bring to a boil. Stir in the couscous, turn off the heat, cover the pot, and leave it undisturbed for 10 minutes.
Meanwhile heat the remaining tablespoon of oil in a very small pan and fry the pumpkin seeds over medium heat, stirring, until browned and popping, about 3 minutes. Stir in 1/2 teaspoon of salt, and leave to cool.
Return to the couscous and transfer it to a large bowl, using two forks to separate and fluff the grains. Stir in the herbs, lemon juice and zest, and feta, then taste and re-season, adding more lemon juice, salt, herbs, or a splash of olive oil as necessary.
Finally, stir in the pumpkin seeds and serve.