There are stage 2 jars that say for 7 months onwards.
Stage 2 is lumpier with bits in - pasta etc.
We started weaning Anna around 5.5 months (I never managed to get her purees smooth so she started on lumps!) and she was on more lumpier stuff within a couple weeks. And she now has pasta a couple times a week. When you see a stage 2 jar which is called a pasta type thing it has very little pasta - Anna has her macaroni like us but it is chopped into little bits.