3 (8 oz each) zucchinis, cut into long julienne strips (with a mandolin or spiralizer)
salt and pepper to taste
Thaw meatballs according to the package
Heat a large nonstick skillet over medium heat. When hot add the oil, onions and garlic and cook until fragrant, about 1 to 2 minutes.
Add marinara to skillet and cook until warm.
Increase heat to medium-high and add the zucchini, season with salt and pepper to taste and cook about 1 minute. Give it a stir to mix everything around and cook another 1 to 1-1/2 minutes, or until the vegetables are cooked through yet firm.
Quickly remove from skillet to prevent them from further cooking.