Pat chops dry; season both sides with salt and pepper.

Place in the crockpot; add tomatoes, marinara, garlic, and Italian seasoning.

Cover; cook on low for 4–5 hours or high for 2–3 hours, until pork reaches 145°F.

Sprinkle with mozzarella; cover for 5 minutes to melt.

Spoon extra sauce over chops before serving. Refrigerate leftovers up to three days.