In a large saucepan or pasta pot, cook macaroni according to package instructions.
While pasta cooks, brown ground beef with onion and garlic in a skillet until ground beef is completely brown. Drain fat.
Add tomatoes, beans, tomato paste, chilies, salt, chili powder, cumin and pepper to skillet, stirring well. Bring to a boil, then simmer (uncovered) for ten minutes.
When macaroni finishes cooking, drain and then add macaroni noodles to skillet.
Lightly spray two 2-quart size casserole dishes with non-stick cooking spray. Divide mixture evenly into both dishes, then top with cheese and jalapenos. Cover lightly with tin foil. Bake at 375F for half an hour. Remove tin foil from the top, then bake for another 10 minutes until hot and bubbly and cheese begins to brown.
Allow to cool completely, cover and freeze.