Italian Style Spaghetti Squash

Name: Italian-Style Spaghetti Squash
Ingredients: 12 ounces tempeh, cut into small cubes; 1 cup packed baby spinach; 2 tablespoons reduced-sodium tamari; 1/4 cup mirin; 2 cloves garlic, finely chopped; 1 (25-ounce) jar pasta sauce; 2 cups small broccoli florets; 1 (2 1/2-pound) spaghetti squash, halved lengthwise and seeded; 1 tablespoon canola oil