Step 1

Begin by preparing chicken to cook and shred. For Instant pot: add tomato sauce, chicken and seasonings to pot. Select manual mode for 5 minutes and let naturally release for 10 minutes. Remove lid and shred. For slow cooker: add tomato sauce, chicken and seasonings to pot. Cook on low for 6-8 hours. Remove lid and shred.

Step 2

Meanwhile, heat oven to 375 F and prepare zucchini by slicing in half lengthwise and seeding. Boil a pot of water large enough to place zucchini in. Boil for 3 minutes and remove to casserole dish.

Step 3

Fill zucchini boats with shredded chicken. Sprinkle cheese over the top. Move to oven and bake for 15 minutes. Remove, let cool slightly and serve.