Prep the vegetables: Cut everything into similar, chunky pieces so they cook evenly. Harder veggies like carrots and potatoes should be about 1-inch thick.
Layer smart: Add potatoes and carrots to the bottom of the slow cooker.
They take the longest to soften. Top with onions, peppers, broccoli, and cauliflower.
Season: In a small bowl, whisk the olive oil, broth, salt, pepper, Italian seasoning, and smoked paprika. Pour evenly over the vegetables.
Add the minced garlic on top.
Cook low and slow: Cover and cook on Low for 4–5 hours or on High for 2–3 hours. Check tenderness with a fork—potatoes should be soft but not falling apart.
Finish with acid: When done, sprinkle with lemon juice or vinegar. Toss gently to coat.
Taste and adjust salt and pepper.
Serve: Top with chopped parsley. Serve alongside roast chicken, grilled fish, quinoa, or toss with pasta and parmesan for a simple bowl.
Optional add-ins: Stir in frozen peas during the last 15–20 minutes. For mushrooms or green beans, add in the last 1–2 hours so they don’t get mushy.