Step 1: Heat about 1 tablespoon of olive oil in a large, deep skillet or Dutch oven over medium heat. Ensure the skillet is large enough to accommodate all the ingredients comfortably. This will allow the sausage to brown properly and the orzo to cook evenly.
Step 2: Add the Italian sausage to the skillet. If using sausage links, remove them from their casings and crumble the sausage into the skillet. Cook the sausage, breaking it up with a spoon or spatula, until it's browned and cooked through. This usually takes about 5-7 minutes. Remove the cooked sausage from the skillet and set it aside. Leaving the rendered fat in the pan adds a ton of flavor to the vegetables. If there is excess fat, you can drain some, leaving about a tablespoon or two in the pan.
Step 3: Add the chopped onion and diced bell pepper to the skillet. Sauté them in the rendered sausage fat (or olive oil, if needed) until they're softened and slightly translucent. This usually takes about 3-4 minutes. Then, add the minced garlic and sauté for another minute until fragrant. Be careful not to burn the garlic, as it can become bitter. The combination of sautéed onion, bell pepper, and garlic creates a flavorful foundation for the entire dish.
Step 4: Return the cooked Italian sausage to the skillet. Add the orzo pasta, diced tomatoes (with their juices), and chicken broth. Stir everything together to ensure the orzo is evenly distributed and submerged in the liquid. Bring the mixture to a gentle boil, then reduce the heat to low, cover the skillet, and simmer for 10-12 minutes, or until the orzo is tender and most of the liquid has been absorbed. Stir occasionally to prevent the orzo from sticking to the bottom of the skillet.
Step 5: Remove the skillet from the heat and stir in the fresh spinach, dried basil, and dried oregano. The residual heat will wilt the spinach quickly. Cook for about 1-2 minutes, until the spinach is wilted but still vibrant green. Season the dish with salt and pepper to taste. Be sure to taste before adding salt, as the sausage and broth may already be quite salty.