Preheat the oven to 350°F and spray a 9 x 13 inch baking dish with cooking spray.
Cook the macaroni in salted, boiling water according to the package directions, until al dente, then drain. Set aside.
In a large stove top pot, add the diced onion and peppers. Sauté in a couple of drizzles of olive oil for 2-3 minutes until translucent. Season with salt and black pepper to your taste.
Add the ground beef and cook until browned. Drain any excess fat from the pan, and add the seasonings, reserving around 1 Tbsp of cilantro for garnishing.
Add the tomatoes, milk, soups. cooked macaroni and 1 cup shredded cheese. Taste and adjust the salt and black pepper. Mix well.
Pour into the baking dish. Top with crushed tortilla chips and the remaining shredded cheese just before baking.
Bake for 35-40 minutes until golden and bubbly.
Garnish with additional cilantro if desired.