Shrimp Fajita Rice Casserole

Ingredients

• cooking spray

• 1 tablespoon vegetable oil

• 1 red bell pepper, cut into thin strips

• 1 yellow bell pepper, cut into thin strips

• 1 poblano pepper, seeded and cut into thin strips

• 1 small onion, sliced

• 3 cloves garlic, thinly sliced

• 1/2 teaspoon salt

• 1/2 teaspoon freshly ground black pepper

• 1/2 teaspoon ground cumin

• 1/2 teaspoon dried oregano

• 1 pound frozen peeled cooked large shrimp, tails removed, thawed (31 to 35 per pound) 

• 1 (14.5 ounce) cans fire roasted diced tomatoes

• 1 1/2 cups cooked long grain white rice

• sliced avocado

• sour cream, as needed

• chopped fresh cilantro

• lime wedges