
One of our favorite comfort-food dinners is spaghetti and meatballs. We're crazy about this lighter, healthier version that features so many veggies. It has the same beloved flavors with more nutritious ingredients! —Courtney Stultz, Weir, Kansas
Cut the squash lengthwise in half; discard seeds. Place halves on a microwave-safe plate, cut side down. Microwave, uncovered, on high until tender, for 15-20 minutes. Cool slightly.
Preheat oven to 350°. Mix 1/4 teaspoon salt with remaining seasonings; add to beef, mixing lightly but thoroughly. Shape into 1-1/2-in. balls. In a large skillet, brown meatballs over medium heat; remove from pan.
In same pan, heat oil over medium heat; saute onion until tender, 3-4 minutes. Add garlic; cook and stir 1 minute. Stir in collard greens, spinach, ricotta and remaining salt; remove from heat.
Using a fork, separate strands of spaghetti squash; stir into greens mixture. Transfer to a greased 13x9-in. or 3-qt. baking dish. Top with the plum tomatoes, meatballs, sauce and cheese. Bake, uncovered, until meatballs are cooked through, 30-35 minutes.