Finely chop the garlic and the red onion.
Heat some oil in a large pot and sauté the onion for 2-3 minutes or until translucent. Then add the garlic and cook for another minute. Then add the spices and the tomato paste. Stir well and cook for another minute until fragrant.
Then add the orzo, the vegetable broth, and the canned diced tomatoes.
Bring to a boil. Then cook on low heat for about 6 minutes until the orzo has soaked up all of the liquid and is tender. Stir very often, so the pasta doesn't stick to the bottom of your pot. If needed add a bit more vegetable broth.
Dice the bell peppers. Preheat your oven to 425 °F.
In a large pan, heat some olive oil and pan-fry the vegan ground beef crumbles until crispy. Or follow the instructions on the package. Add the bell peppers when you start frying the vegan ground beef.
Once the orzo is tender, pour it into a casserole dish and add the cooked vegan beef crumbles and bell pepper. Also add the olives and stir well. Crumble the vegan feta with your hands and sprinkle it over the pasta.
Place the casserole in the oven and turn on the grill function or broil setting. Let the vegan feta melt for a few minutes and let it get a few golden spots. But make sure to pay close attention, so it doesn't get too dark.