Here’s a 7-day vegetarian diet plan for weight loss, with approximate calorie counts for each meal. This plan aims to provide around 1200-1500 calories per day, depending on portion sizes. Please consult a doctor or nutritionist before starting any diet plan, as individual needs may vary.

Day 1 (approx. 1280 calories):

Breakfast: Greek yogurt with honey, mixed berries, and chopped nuts (300 calories)

Lunch: Caprese salad with fresh mozzarella, tomatoes, basil, and balsamic glaze (350 calories)

Dinner: Vegetable and paneer curry with brown rice (450 calories)

Snack: Baby carrots with a small bowl of hummus (180 calories)

Day 2 (approx. 1300 calories):

Breakfast: Overnight oats with almond milk, chia seeds, and mixed berries (300 calories)

Lunch: Grilled vegetable wrap with pesto, bell peppers, cucumber, and lettuce (400 calories)

Dinner: Spinach and ricotta stuffed shells with marinara sauce (450 calories)

Snack: Fresh fruit salad (150 calories)

Day 3 (approx. 1320 calories):

Breakfast: Smoothie with banana, spinach, Greek yogurt, and a scoop of protein powder (300 calories)

Lunch: Quinoa and black bean salad with mixed greens, cherry tomatoes, and lemon-olive oil dressing (400 calories)

Dinner: Eggplant parmesan with a side of whole wheat pasta (450 calories)

Snack: Cottage cheese with pineapple (170 calories)

Day 4 (approx. 1350 calories):

Breakfast: Whole grain cereal with low-fat milk and a sliced banana (300 calories)

Lunch: Lentil soup with a side of whole wheat bread (350 calories)

Dinner: Vegetable and cheese quesadilla with a side of salsa and guacamole (500 calories)

Snack: Greek yogurt with a drizzle of honey and a handful of almonds (200 calories)

Day 5 (approx. 1250 calories):

Breakfast: Toast with avocado, tomato, and a sprinkle of feta cheese (300 calories)

Lunch: Grilled cheese sandwich on whole-grain bread with tomato and a side salad (400 calories)

Dinner: Mixed vegetable and tofu stir-fry with brown rice (450 calories)

Snack: Apple slices with peanut butter (100 calories)

Day 6 (approx. 1300 calories):

Breakfast: Greek yogurt parfait with granola, mixed berries, and a drizzle of honey (300 calories)

Lunch: Falafel salad with mixed greens, cucumber, tomato, and tahini dressing (350 calories)

Dinner: Cheese and vegetable pizza on a whole wheat crust (450 calories)

Snack: Celery sticks with a small bowl of cottage cheese (200 calories)

Day 7 (approx. 1270 calories):

Breakfast: Muesli with low-fat milk, chopped nuts, and dried fruits (350 calories)

Lunch: Caprese panini with fresh mozzarella, tomatoes, basil, and balsamic glaze (400 calories)

Dinner: Vegetarian chili with kidney beans, tomatoes, and corn, served with a side of brown rice (450 calories)

Snack: Greek yogurt with a handful of walnuts (70 calories)

Remember to drink plenty of water throughout the day and adjust portion sizes according to your activity level and personal needs. This meal plan can be easily modified to include more vegetarian ingredients or to accommodate specific dietary preferences.