Pre-heat oven to 450 degrees F.
Slice peppers lengthwise and lay face down on a parchemnt paper lined baking sheet. Do not overcrowd. Drizzle with oil and a sprinkle of salt. Bake in oven for 10 minutes.
Now, cook orzo according to package in boiling water for 3-4 minutes until al dente (do not fully cook). Drain and rinse.
Remove from oven and carefully pour out any moisture from inside peppers. Set aside.
Mix yogurt and all spices together to form your tandoori marinade. You can also leave the yogurt out and just mix the dry spices, or use a dairy free yogurt alternative.
Sauté onions and grated garlic and ginger on medium-high heat in high smoke point oil of choice on a pan until golden brown.
Add in mushrooms and a sprinkle of salt to remove moisture from mushrooms and saute until mushrooms are golden brown. Then, add in marinade and sauté for a few minutes, allowing moisture from yogurt to evaporate quite a bit before moving to next step.
Finally, add in cooked orzo and chopped spinach and saute for a few minutes until orzo is cooked.
Turn off heat and put about 2-3 tablespoons of filling into each pepper on baking sheet. Top with feta (optional).
Place back in oven for 5-10 minutes until feta is golden brown.
Remove and serve immediately with creamy cilantro chutney. Enjoy!